Nick Gillespie | August 4, 2006
Reason Science Correspondent
Ronald Bailey will be on PBS' Newshour tonight, discussing global
warming. For local station info, go here. For Ron's
column on Al Gore's "An Inconvenient Truth," go here. And for his
column on why "we're all global warmers now," go here.
Buy Ron's great book, Liberation Biology, here.
And while you're at it, why don't you just subscribe to Reason already?
Update: Transcript and audio online here.
Help Reason celebrate its next 40 years. Donate Now!
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Well, I "heart" libertarian transhumanists, whether or not Movable Type wants to acknowledge the fact.
From Ron Bailey's critique of Gore movie: "as a recent convert
to the view that humanity is contributing significantly to the
current increase in average global temperatures.."
Translation: people no longer believe me when I tell bald-faced
lies denying what has been the consensus among real scientists for
more than a decade, so I can now better serve the agenda of the
corporations that fund the Competitive Enterprise Institute by
warning against acting "drastically."
Eric,
Contrary to popular belief, you don't get to pick who qualify as
"real scientists". While I wouldn't touch the CEI with a ten-foot
pole, there are plenty of non-quack climatologists who question
both GW and AGW.
Lots of people make assumtions about the motivations of others
based entirely upon their own biased assumptions.
Who knows what the reality is? I only know the few things I can
objectively and with certainty know, the rest is what someone else
tells me, which gives me very little certainty.
Translation: people no longer believe me when I tell
bald-faced lies denying what has been the consensus among real
scientists for more than a decade, so I can now better serve the
agenda of the corporations that fund the Competitive Enterprise
Institute by warning against acting "drastically."
You make it sound like there's no difference between skepticism and
crimes against humanity.
I've got tons more respect for someone who changes his public
opinion in a public forum for reasons he puts out there in public
than I do for someone who goes along with the consensus of "real
scientists" for more than a decade.
Ken,
So pretty everyone who got the question right a decade ago is
unworthy of your respect?
Exactly how long should I have held out against the mountain of
evidence as it grew?
Learn to look into the camera, Bailey.
Also, I judge books by their cover, and if the cover to Lib Biol is
any indication, it's a book full of lies as big as the lie that DNA
has a left-handed helix.
I didn't throw the towel in much before Bailey. ...and I didn't
say that people right for years are undeserving of respect.
But there's room for skepticism until the facts dictate otherwise.
Scientific progress is dick without skepticism--is it not?
Changing your mind because you reevaluated the facts isn't a bad
thing. ...and when you do it in public, it's a freakin' virtue.
Ever changed your mind, joe?
Ken,
I've changed my mind on gun control over the past few years, going
from a strong supporter to the skeptical side of neutral.
I've retroactively come to support the 1991 Gulf War. (Maybe we
shouldn't give peace a chance when a big country invades a little
country so they can steal its stuff.)
I have a lot of respect for skeptics, Ken. So much so, that I don't
like seeing what I consider to be an honorific exploited by
politically-motived denialists. I never saw Bailey or other global
warming deniers in the conservative media express skepticism when
it came to, quote unquote, the heroic outsiders who dared to stand
up to Big Climatology. Denying one side of a story wholesale when
it that side is based on an inconvenient truth isn't skepticism;
it's either delusional, or it's dishonest.
I don't know what's in Ron Bailey's heart, but I don't remember
seeing him deny one side of the story wholesale. I remember seeing
skepticism, and I remember there being legitimate room for
it.
...and I've changed my mind before too. I changed it about our
efforts in Central America during the Cold War. Largely because of
some reading I did because of some comments you and somebody else
posted on this site. The facts didn't change, but my perception of
them did. I don't think that means I was being dishonest
before.
Actually. PBS dropped the feed from Ron , whose head only got to
talk for the last 2 minutes. The first 8 spanned the spectrum from
The New Yorker to the New Republic. The bad feed was something of a
mercy as
no one brought up the hit or myth title of his CEI book.
It doesn't seem fair to drag a mostly biotech guy into the climate
modeling arena with two lions anyway.
Look, if libertarian science reporters have been reluctant to believe the evidence it's because they're very harsh and demanding skeptics. They want more data. They want more analysis. They want all of the alternative explanations considered. They know better than to trust something without very, very, thorough proof. They won't fall for...what's that? Wacky speculation about transhumanism? COOL!!!!
I never saw Bailey or other global warming deniers in the
conservative media express skepticism when it came to, quote
unquote, the heroic outsiders who dared to stand up to Big
Climatology. Denying one side of a story wholesale when it that
side is based on an inconvenient truth isn't skepticism; it's
either delusional, or it's dishonest.
I agree -- Bailey should have been more skeptical of the skeptics
and their skepticism.
And then, just to be on the safe side, he also should have been
skeptical of the skeptics who were skeptical of the skeptics.
In fact, I would think prudence dictates that we take it at least
one step further, and be skeptical of the skeptics of the skeptics
of the skeptics.
And congratulations on your farsightedness, joe. You rolled a
seven, so you might as well let it ride.
Me, I'm taking the position that global temperatures will start to
drop in 2015. It's true that there isn't much evidence to support
that yet, and some "skeptics" might think I'm being premature in
making such a forecast. But I'm sticking to my guns, and if 2015
does end up being cooler, I can tell you all that I told you
so.
Well, call me a fool, but I'm still skeptical. I'm still not
impressed by the science. I don't think we fully understand the
reasons why the climate is warming (but I do believe that it is
warming--I vote for the sun). Nonetheless, I'm all for building a
crapload of nuclear reactors to generate lots of electricity for
next-gen electric cars. Technological progress is good even if you
don't have a reason (such as possible global disasters).
I second Stevo's prediction. There has to be another ice age
eventually, doesn't there?
I don't understand why longtime skeptics are changing their minds. The studies hat had been claiming to show with a lot of confidence the temperature record going back a thousand years have been discredited. The whole field is going to have to start over a new way.
One of the reasons I was reluctant to accept global warming was
because the policies being put forward to address the problem
seemed likely to hurt the economy.
...before I go in for chemotherapy, I want to make damn sure I've
got cancer.
I'm still not convinced that some of the remedies being put forward
aren't worse than the disease. If regulating carbon dioxide
emissions becomes a proxy for central planning, can someone assure
me first that global warming is worse than central planning?
I'm with Ken Shultz. To quote a
comment I made in April of last year...
In order to require political action, the climate change issue
needs to satisfy a whole chain of conditions:
1. Anthropogenic climate change must be proven real.
2. It must be significant and outside the bounds of normal climate
variation.
3. It must have a significant impact on humanity.
4. The negative impacts on humanity must be greater than the
positive impacts.
5. The costs of directly addressing climate change must be less
than the costs it imposes on humanity or the costs required to
otherwise mitigate the consequences. And note that when you impose
a cost today to mitigate something a century from now, you are
betting against an exponential.
The principal problem with global warming advocates is that they
think they have condition 1 nailed, and that that gives them the
authority to foist worthlessly destructive schemes like Kyoto on
humanity.
Ken's last comment pointed out one of the problems of getting on track to find solutions. To paraphrase, he said he was reluctant to accept global warming BECAUSE the suggested policies might hurt the economy. Forgive me, but that's not good reasoning. If the evidence shows that global warming is real (come on, regardless of skepticism the preponderance of evidence supports that conclusion), then we need to look for solutions. If those suggested already might cause too much economic pain, then we need to look for other solutions, not pretend that the problem doesn't exist.
I was just delighted they saw fit to have what appeared to be a
liberal, a conservative, and a libertarian. I can't swear that was
intentional on their part, but I suspect it was.
That definitely qualifies as progress, someone in the MSM thinks
there are more than two sides on the major issues.
I think it sucked that Bailey didn't get more air time due to
"technical difficulties" though. In the little time he had he added
something to the discussion I've never heard in the MSM before.
Namely the awesome power of compounded GDP growth. We can solve an
awful lot of problems 100 years from now if we don't kill the
economy today to pacify the envirohystericalists.
To paraphrase, he said he was reluctant to accept global
warming BECAUSE the suggested policies might hurt the economy.
Forgive me, but that's not good reasoning.
Kyoto was up for consideration before the jury came back on global
warming. That's not the way I wanted it to be--that's the way it
was. Signing on to a treaty like that, with all the economic pain
it was likely to bring, before we (or I) knew for certain there was
a problem...
I'm not saying I've never put the cart before the horse, but, at
the time, weighing the merits of global warming arguments within
the context of Kyoto made sense. Indeed, as Mike pointed out, the
jury's still out on whether the benefits of Kyoto would
justify the costs to our economy. Maybe it would have been more
accurate to say I was reluctant to accept policy prescriptions
before all the facts were in.
Still, being reluctant to accept the facts doesn't mean I didn't
accept them. I was reluctant to accept what we did at Abu Gharib
too, but the facts are the facts despite my feelings about them.
...and just as I accepted that we did what we did at Abu Gharib, so
I accepted the facts of global warming.
Thoreau, you've harped on the theme of Bailey being slow to
accept GW, but being very interested in cutting edge medical
research. What is your point? Being a skeptic does not preclude
interest in new research, even if it is "out there."
Most scientists are very interested in the latest findings in their
fields, but are skeptical until sufficient evidence comes in. What
is sufficient is, of course, in the eyes of the beholder. All
people have prejudices, data allows us to overcome those
prejudices. That is WHY science works.
For a variety of reasons I found most low altitude atmospheric data
suspect, but was quickly convinced when ocean data showed warming.
Does that make me an unreasonable skeptic?
I am also fascinated by the evidence for dark energy, even though
no one seems to have much of a clue how it is possible. Does that
make me a nut job?
Are these truly incompatible, as you seem to be saying with your
pokes at Bailey? He is very interested in medical improvements to
humans, what is your problem with that? What are YOUR
prejudices?
Stuart, there's a difference between curiosity and
enthusiasm.
As a practicing scientist, I tend to be very skeptical even of the
things that I'm working on: I'm fascinated by them, I think there's
a lot of potential there, but I'm also keenly aware of the
obstacles. I temper my enthusiasm with informed skepticism, to the
point where I'm probably more likely to get carried away with
enthusiasm for somebody else's pet project rather than my own pet
project. That's been the case in every cutting-edge area of
scientific research that I've ever been involved in: Quantum
computing, photonic bandgap materials, nanoscience, imaging beyond
the diffraction limit, and anti-angiogenic therapy. All of these
are hot subjects with lots of potential and considerable hype, yet
working in these fields has made me realize how far we have to go.
(Quantum computing, which I worked on for about 6 months and
collaborated on one paper, has gone a considerable way since the
time when I was involved.)
So I figure that if a person is really immersing himself in a field
then he'll learn enough to become a little more sober. If somebody
doesn't become sober about a subject that he claims to be following
very closely, then I have to wonder how well he's understanding the
science.
And when that same person remains intensely skeptical about certain
other subjects, and when the differential enthusiasm and skepticism
just happen to coincide with proclivities and sympathies that are
common among libertarians, well, it raises certain questions.
Still, I give Ron Bailey credit for two important things:
1) He has changed his mind on a big issue and admitted so
publicly.
2) He comes here to interact with his critics.
Despite my differences of opinion with him, I respect him for those
two very significant things.
I don't know if Ron's previous position was unconditional, if so
THAT was his error.
I was skeptical, and still am, about the WHOLE AGW spiel, but my
skepticism was, and is, conditional on the validity of the
information.
It would be most unusual to have NO climate trend one way or the
other. The available information is that life on earth has always
impacted climate, first in reducing the early atmosphere into
something that supports life as we know it.
As Michaels has pointed out, the temperature trends are not
mysterious, just take past past (long term) trends and impose a
straight line to see where it's going. The climate has always
varied and life has always adapted.
Remember the caution from the Hitchhikers Guide to the Galaxy:
DON'T PANIC!
Stevo, you flatter me.
There was nothing even the slightest bit farsighted or remarkable
about realizing where the science was headed ten years ago, or
recognizing that it had gotten there five years ago.
The difference between myself and "skeptics" isn't that I have any
particular insight or gift, but that I wasn't actively trying not
to believe the evidence.
Thoreau, out of curiousity, what are the certain questions? Mr.
Bailey is a libertarian science journalist writing for a
libertarian magazine. His prejudices seem to match with other
libertarians.
Next thing you know, we will discover that many physicists think
they are smarter than everybody else and can rationally figure out
how to solve every problem. (I say that with nothing but respect
and admiration, I am an ex-physicist who found engineering more
lucrative at a point in my life where lucre was very
important.)
Joe, science doesn't head anywhere, it follows the data. Skepticism
is what makes it work. I'm not sure if I follow your statements,
but you seem to be saying that you didn't understand the science
well enough before to be skeptical, but in the end were correct.
Therefore everybody who was skeptical was delusional or
dishonest.
Is someone who currently believes the sun is responsible for a
significant portion of global warming delusional or dishonest?
No, Stuart. I, and more importantly, the actual scientists who
know the issues best, did follow the data, and did understand it
enough to come to the right conclusion.
Between global warming and Iraqi WMDs, I'm getting pretty damn sick
of people telling me that my ability to come to the right
conclusion before they did proves that I was going about it
wrong.
"Is someone who currently believes the sun is responsible for a
significant portion of global warming delusional or dishonest?"
Those who claim that human activity is NOT responsible for a
significant party of global warming are misinformed or dishonest.
No one is saying that there are no possible other causes.
Face it, now that the theory that the sun became much more powerful
during the exact period of greenhouse gas buildup was occuring is
being demolished, the next Ronald Bailey will come out with another
theory - it's the earth's core! It's the orbit of Pluto! It's the
erosion of the Himalayas! - that will cause all of you skeptics to
scratch your heads, and say he must absolutely not even think of
doing anything until this incredibly important question is settled
once and for all. And then the next one. And then the next one,
just like you've been doing all along.
It's a transparent game, just like Intelligent Design, and I'm not
going to pretend that the people willing to be duped by it are
demonstrating responsible scientific skepticism.
Stuart-
The question is whether Reason's coverage of science,
technology, medicine, and the environment is driven more by
ideology than data.
Here's the thing about ideology, skepticism, and science: Selective
application of skepticism is fine if we're talking about policy
rather than science. Consider these assertions:
1) Molecule X causes cancer.
2) Molecule Y kills tumors.
3) Molecule X should be banned.
4) Molecule Y should not be regulated.
The first two statements should be regarded with equal skepticism:
We want more data. We want to see the results replicated by an
independent group. We want the data tested by a different
statistical method. We want the data examined to see if it is also
consistent with an alternative hypothesis. And so forth.
This equal skepticism should be the same whether you're a Democrat,
Republican, Libertarian, Independent, Perotista, Objectivist,
whatever the hell you are.
The third and fourth statements, however, might be evaluated in
light of ideology, since they are policy prescriptions rather than
observations about the natural world. If one is a libertarian, then
naturally a call for banning molecule X will meet with skepticism,
if not outright dismissal, while a call for allowing people to buy
and sell molecule Y will be met with great sympathy.
I expect libertarians to take a libertarian approach to policy, and
I expect Reason to take a reasoned approach to questions
about the natural world.
Thought experiment: Imagine that a study comes out purporting to
find that smoking marijuana increases the odds of coming down with
some nasty disease. Let's even suppose that the data is pretty
solid, and the study is soon replicated and supported by other
lines of inquiry. The drug warriors take this as proof that
prohibition is necessary.
What's the best approach for a libertarian publication to
take?
I would expect the libertarian publication to be open to the
possibility that the data is correct, but suggest that prohibition
is the worst way to deal with the negative effects of marijuana. I
might even excuse a bit of lingering skepticism about the
data.
I would be disappointed if a libertarian publication's strategy on
the issue mostly involved harping on every remaining open question
concerning the data. And I would be especially disappointed if the
same libertarian publication gave uncritical coverage to, say,
questionable claims made concerning alternative medicine.
Ken says 'the jury is still out', interestingly:
http://tinyurl.com/lqnvo
guess who's going to be reviewing the whole mess?
Teh Supreme Court!
People have all kinds of beliefs. Whether any of their beliefs
is an accurate reflection of reality says nothing about how they
came to those beliefs. A lot of people seem to acquire their
beliefs osmotically, without critical evaluation of the relevant
information. This is a very haphazard way of building ones internal
model of the outside world. On occasion, a particular belief may,
in fact, have some correspondence to reality. This does not
validate their manner of acquiring beliefs.
Being a skeptic does not mean that one has an opposing belief, but
rather, that one realizes that there exists in the world all manner
of misconceptions about reality, particularly in the popular
wisdoms.
I give Mike P's rules a big "Hell, Yeah!"
One question the anthropogenic climate change cultists never answer
is this: "What % of climate change can be traced to human
activity?" If it isn't a significant number, the question of what
behavior we change, and how, is moot.
C'mon. Give us a ballpark figure.
Oh, and thoreau can't be trusted `cause he's in the pay of the
gubmint. :)
Kevin
kevrob-
If I have my way, once I'm a faculty member I'll be jockeying for
industrial grants. (I have a project that I think a few companies
would be interested in.)
So then I'll be untrustworthy because I'm in the employ of the
corporations, in their corporation buildings, doing their
corporation thing and getting all the money.
And when I move into academic administration, I'll be untrustworthy
because I'm in the employ of those academic leftists, not to
mention the money that the college gets from football.
Basically, you should never, ever, ever trust me.
Kevrob,
You need to define a timeframe for your question, because if
allowed to pick one's own, a snarky bastard could easily answer
"All of it."
In my case I would define the time period of 1900-2000, and would
answer roughly half (maybe more), with the natural half
originatinging from the mild but sustained increase in Solar energy
during the first half of the 20th Century (which has since levelled
off.).
sam:
OK, your ballpark number is 50%. What have you got to back that up?
No fair saying, "half of it is due to solar variablility, so the
rest must be us."
I'm keeping my eye on that sneaky thoreau.
Kevin
kev,
This graph:
http://www.mps.mpg.de/en/projekte/sun-climate/
shows what I mean by the suns output over the past century.
And this shows other forcings:
http://en.wikipedia.org/wiki/Image:Climate_Change_Attribution.png
on the last one, the solar section looks a little different from
the one in the first link because the first measures energy in
W/m^2 and the second shows measures of solar forcing in degrees
centigrade, this latter likely includes the changes in Insolation
at the Earth's surface, whereas the former literally just measures
the Sun's energy independently from changes in the Earth's heat
retention properties.
volcanic methane and soot would be a problem...
but did I at least minially answer your question? (even if you
don't agree...)
Also sci-fi author Gregory Benford is on record as having suggested
releasing powerful reflective aerosols into the air to help cool
things....probably easier than getting Volcanos to go off on
demand...it's not like they are porn stars.
The scientists at www.realclimate.org don't much care for the idea,
as it is better to simply stop "rocking the boat" instead of trying
to" counter-rock the boat". I'll get the article later when I have
time.
sam:
I give you credit for being the first ACC advocate I've ever seen
provide a prima facie explanation of how much climate
change can be laid at the feet of us humans.
I'm still skeptical of the computer modeling. There's no way a
layman like me can judge whether the models are trustworthy, and
too many of the advocates are just watermelons. (Green on the
outside, red on the inside.)
Kevin
A question which never occurred to me before, to ask global-warming deniers: can you think of a scenario wherein radically increasing the percentage of greenhouse gases in the atmosphere does not lead to greater retention of heat by said atmosphere? How does this work, do you think?
kevrob,
Here is that geo-engineering article I promised:
http://tinyurl.com/fbqh4
Make of it what you will.
Jennifer - Saturation and negative feedbacks. Anyway that's not what the debate is about. Everyone agrees that increases in CO2 should lead to increases in heat. The question is if increases from the current (very low) levels is a drop in the bucket or measurable and substantial. The science there is much cloudier than MSM would lead you to believe.
The question is if increases from the current (very low)
levels is a drop in the bucket or measurable and substantial. The
science there is much cloudier than MSM would lead you to
believe.
Atmospheric CO2 samples from ancient ice cores drilled in Greenland
show that the levels did rise quite a bit (considering what a tiny
amount of CO2 we had to start with).
But I'd say that IS what the debate is about; even though the
majority of mainstream scientists (at least the ones not paid by
coal companies, oil companies and other businesses with a vested
interest in denying global warming) say GW is real, there are those
who keep insisting that no, it isn't. So I would like to know how
they figure the temperature stays the same even though the levels
of greenhouse gases have been increasing.
We've been pumping ever-increasing amounts of CO2 into the
atmosphere since the late 1800s; how does this NOT result in warmer
temperatures, do you figure? And will this continue to NOT result
in warmer temperatures no matter how much CO2 we add to the
mix?
Jen the "Exxon paid disinfo" meme that AGW supporters use makes
them sound like perpetual motion machine scammers. Exxon doesn't
pay as many people as some people would like to think. And even if
Exxon does pay someone, a better flaw in their work than that
should be found to discount their work.
Now AGW supporters who get money from the carbon credit lobby,
their work should be discounted on that basis alone, no?
The big human CO2 outputs really started in the 1940s. The warming
trend started in the 1700s. So there is something going on other
than CO2 induced warming. We don't really have a good handle on
what's the range of variability in the climate.
The big human CO2 outputs really started in the 1940s. The
warming trend started in the 1700s. So there is something going on
other than CO2 induced warming. We don't really have a good handle
on what's the range of variability in the climate.
Yes, temperatures have been going up since the end of the Little
Ice gae, possibly due to the decrease in volcanic activity after
that time. But that doesn't answer my question--how have we been
able to dump greenhouse gases into the atmosphere without causing
any additional greenhouse effect, and can we do so indefinitely or
will there come a point where we need to reduce how much extra CO2
we remove from the ground and pump into the atmosphere?
Jen there isn't an answer. We just don't have a formula for how the climate works. People would like to think that we do but we don't.
Denying one side of a story wholesale when it that side is
based on an inconvenient truth isn't skepticism; it's either
delusional, or it's dishonest.
umm when glaciers melt and stumps of trees are found that died from
the cold less then a 1000 years ago it is possible to come to a
conclusion that natural causes can warm the earth to temperatures
above those that exist today.
Johnl,
we have had such a formula since 1896:
http://www.aip.org/history/climate/timeline.htm
maybe not a good one at that point, but a formula we had.
They know better than to trust something without very, very,
thorough proof.
Well they no better then to trust polititions using fear of dooms
day as an excuse for massive expenditures and massive centraliszed
regulation of the economy...
Me, I'm taking the position that global temperatures will
start to drop in 2015. It's true that there isn't much evidence to
support that yet, and some "skeptics" might think I'm being
premature in making such a forecast. But I'm sticking to my guns,
and if 2015 does end up being cooler, I can tell you all that I
told you so.
hitch your star...this is actually intersting...not that i think
Stevo is right but that he, like Ron, is hitching his skeptisism on
a particlar unanswered question...Ron had his on the fauled up
satalight data, stevo has his on his gut feeling about 2015.
I put mine on the non-robustness of the Ipcc 2000 report that
relied so heavely on mann's 1998 multi-prixy study...
It is my opinion that the AGW folks link between co2 and rising
temps rely on the unpresedented nature of current temp trends...if
those trends do in the futer gain robustness in proof i will drop
my skeptisism.
how have we been able to dump greenhouse gases into the
atmosphere without causing any additional greenhouse
effect,
quiz of the day:
Which one of these gases is a greenhouse gas?
A) Water vapor
B) CO2
C) Oxygen
D) Nitrogen
E) Argon
F) all of the above
Answer F
What percent of earths atmosphere is composed of C02?
answer: .035%
If water vapor is a greenhouse gas and higher temperatures increase
water vapor consentrations then why hasn't a natural run away green
house effect super heated the earth?
answer: No one knows but it is assumed that there are still as yet
unexplained cooling effects that prevent this.
"it is possible to come to a conclusion that natural causes can
warm the earth to temperatures above those that exist today."
but it is necessry for the skeptics to come up with both an
alternative theory to explain the current warming,
which is not necessarily natural; and show how the prevailing
theory completely fails to explain the current warming.
in the first part, skpeptics have some vague idea that some natural
force or other is somehow acting up, an in truth during the first
half the 20th centurym the sun did warm up ...a little bit. This is
actually included in the current models, but in no way appears to
overwhelm the influence of CO2 and other Greenhouse gasses.
In the second part, as I already linked to above, there has been a
century of research on the warming influnece of CO2; no sceptic has
been able to show that the whole body of knowledge is in any
significant state of error. What is said is that CO2 is such a
small part oif the atmosphere that an increase shouldn't have any
significant effect at all.
In this respect there is a misunderstanding of the basic feedbacks
involved. As you can see here:
http://en.wikipedia.org/wiki/Earth%27s_atmosphere
The vast majority of the atmosphere is Nitrogen and Oxygen, almost
totally permeable (99%) to radiations from the sun and the earth's
reflections thereof. Of the 1% that affects anything, CO2 is 3.5%
at 381 ppmv; a more powerful gas is CH4 (methane) at 1.745 ppmv,
0.01745%; Ozone, makes up 0.0 to 0.07 of the atmosphere, depending
on region, ie the Northern Hemisphere industries sustain Ozone in
the air above it; chlorofluorocarbons are also notable; the most
powerful gas is watervapor, around almost 99% of the gasses which
affect the globes temperature, and is the strongest at affecting
heat. It is important to note that while 99% of the Earth's gasses
don't trap the Sun's heat, 70% of the Earth's surface does. Water
vapor generates 36% of the greenhouse effect, but C02 is 12%. So on
the face of things it would seem that the critics have a
point, that altering Co2 would have little effect on
Warming...
The thing they miss, sometimes it seems deliberately, is that water
vapor imbalances have a residence time of under a week.
It rains out when there is too much.
Ozone generates 3% of the Greenhouse effect, but lasts hardly at
all...the only reason it is significant is that we keep pumping o3
into the air.
Whereas C02 imbalances have a residence time of centuries. It
doesn't rain out... or otherwise disappear easily. It continues to
keep things warm. Most importantly, it keeps watervapor warm
generating a feedback loop which keeps more watervapor warm until
an equilibrium is reached.
What this means is much like the relationship between your foot and
the engine in your car. Your foot is nowhere near as powerful as
the engine in your car. But the car isn't going anywhere without
your foot pressing the gas pedal. CO2 is the global 'lead foot on
the gas pedal'. You remove the 'foot' and the water vapor 'engine'
cools and the global 'car' cools. Add too much 'foot' and the
'engine' risks overheating and/or 'crashing' the 'car'.
Joshua,
Where are Oxygen (o2) and Nitrogen listed as greenhouse gasses? I
can find no credible source which shows what % effect they
have...if any.
The atmosphere is made up of "greenhouse gases" that is what
makes life here possible. Jen: thanks for proving Larry Summers
right... you go grrl.
Temps go up and down for lottsa reasons. Maybe CO2 is one of many
drivers (maybe it's just a follower), my quess is that water vapor
is much more significant along with the change in albedo from land
alterations, esp in cities and ag lands and the sun. The sun might
have some effect on temperature. Maybe there should be a study on
it, along with the increasing canibalism among polar bears. They
are getting the ID morons to buy into it with studies showing that
impure thoughts and homosexuality increase with increasing
temperatures... just look at the tropics and all of them savages
that Maggie Mead banged so long ago.
It's all very complicated and no one knows what the heck all of the
data means. NO ONE. Then you have Gore getting the classic Pavlov
response from the oh so mod and stoopid nihilistic boomers and
their vile spawn to believe the sky is falling. The media has been
running globo swarming stories every summer for the past 10 years
and all schools make it the #1 environmental bandwagon.
You so-called libertarians who likely arnt real libertarians (you
know the kind who right ther own paycheques) should figure out that
globosmarming is the latest tack of the commiepinko control your
farts from cradle to grave nannystate worthless lying pukes.
All while urban and ag kids grow up with more pollution damage and
lets not start on Africa. Thats right, keep afrika poor with a high
turnover and the world will be safe for hemp sarongs and soy
macchiados.
Can anyone spot the self-involved bedwetters?
ARGH!!!
Godwins Law is almost applicable to your comment. Just change
'commiepinko' to the other N word, and it's end of conversation
time.
We just don't have a formula for how the climate works.
People would like to think that we do but we don't.
And yet you can still state that the majority of scientists who
believe in manmade global warming are wrong? But you can't explain
why--you can just say "they're wrong, I know this because climate
is complicated. We don't know how it works, but I know that I'm
right and the scientists are wrong. But I can't explain why."
If water vapor is a greenhouse gas and higher temperatures
increase water vapor consentrations then why hasn't a natural run
away green house effect super heated the earth?
answer: No one knows but it is assumed that there are still as yet
unexplained cooling effects that prevent this.
The unexplained cooling effect is actually explained. It is called
"global dimming" and while I am by no means an expert, it is
basically an increase in cloud cover and cloud albedo that has
resulted in a net increase in albedo and corresponding net decrease
in insolation at ground level (insolation measured directly by
photovoltaic cells, and indirectly by pan-evaporation readings).
The measured global dimming over the past few decades has a great
deal to do with increased particulate emmisions on a global scale,
and may have significantly masked the effects of greenhouse
warming. Absent the increased albedo due to particulate influence
on cloud formation, the greenhouse effect might have increased
global temperatures significantly more than they have.
Jen the studies that proported to show that we can now tell +- 0.5 degrees what the world's average temp was 100 years ago aren't holding up well under scrutiny. If you are interested it's fun watching that concensus melt away. Generally those studies have relied on using analysis of moisture stressed trees in the American West that are not proxies for their local temperature, and fall apart without them.
I love how Horst followed a slam on women's ability to
understand science with the statement, "Temps go up and down for
lottsa reasons." Boo ya!
Too bad there wasn't an "i" in any of those words, dearie, you
could have drawn a little heart with your sparkly pen.
Oh, and Joshua, with respect to nitrogen and oxygen being
greenhouse gasses, this is incorrect. A gas is termed a 'greenhouse
gas' if it has a higher visible-transmission/thermal-transmission
ratio than the N2-02 mix that dominates our atmosphere. They are
not greenhouse gasses by definition. In any event, CO2, water
vapor, ozone (O3, not O2), and methane are sooooo much
better at trapping energy than N2 and O2 that even a small amount -
even 0.035% - in any of their levels in an otherwise pure
nitrogen-oxygen gas will greatly increase its opacity in the
thermal bands. So when compared to real greenhouse gasses, N2 and
O2 would never be considered greenhouse gasses. Argon's greenhouse
power is also negligible by comparison to the 'real' greenhouse
gasses listed above.
To quote from a Scientific American article:
"Nitrogen, oxygen and argon together comprise more than 99 percent
of the atmosphere. None of these three gases [significantly*]
absorb either visible or infrared light; both types penetrate the
entire atmosphere. It is as though, when it comes to the absorption
and emission of light, the atmosphere�s three main components do
not exist!"
*I added the word "significantly" because while their permeability
is very high in these spectral bands, it is not infinite.
CO2, H2O, N2O, O3 and CH4, are all greenhouse gasses. Atmospheric
nitrogen (N2), oxygen (O2), and argon are not.
Just to complete my beliefs a little better, I am going to
expound on one point. Earlier I wrote that the Earth's surface
captures a good deal of energy, some 70%. Most of this energy is
more or less slowly released in some form or another, keeping the
planet livable.
That 70% is variable. If there is a notable reduction in
temperature (from orbital, solar, or gasseous or other changes)
then bright white ice sheets tend to form, reducing the amount of
sunshine collected, making things colder still, until an
equilibrium is reached. Often these ice sheets will form over water
and stay for the winter, and more or less go away in the summer. If
they form on land and stick around, this lowers sea levels. Most of
the sunhshine the Earth collects is in the oceans, as water
actually holds heat better than rock and soil. So when Ice Sheets
form over land, the effect is twofold.
Conversely, if there is an increase in temperatures for whatever
reason, the ice sheets melt, reduing the earths birghtness. Over
the oveans, this absorbs more sunlight, warming things further. And
Ice over land that melts increases the area of dark ocean water,
whichh absorbs even more sunshine. Until an equilibrium is
reached.
In terms of my automobile analogy, this is like linking the gas
pedal to the brake, such that when the driver's foot lets up on the
gas, the brake is automatically engaged, slowing the car, instead
of just drifting. Pressing the accelerator lets up on the brake.
This means that even very small changes in any one of the several
climate change factors can have very significant effects on the
climate. If the Driver is too quick with the foot, the ride will be
jerky; but if gentle enough it is manageable. The Driver BTW is the
Earth's ecosystem...not really an Earth Godess, just living things
collectively responsive enough in a mindless mob kinda way to adapt
and brake/accelerate as mostly needed.
Due to Milankovich cycles, and changes in the Sun, the Road itself
can be bumpy, and the Driver isn't always able to respond
perfectly, and so we have Ice Ages.
What we have now is an opportunity to make the Driver better at
adapting to changes in the Road. Or careen wildly out of control,
like some drunken teenager in a poorly modded hotrod...which oddly
reminds me of a certain rather cool Invader Zim episode.
Q: "Why turn your home planet into a hotrod?"
A: "It's just so coool!"
Joe:
Yeah, 'cause h&r is such a serious forum, esp wrt science. i
just luv how the piece and feifdom party has taken over
reasoniods.
well thankfully Horst is here to show us how to be serious. I am sure your well reasoned, facts supported things-to-say, with respect to this discussion, will be arriving shortly.
well thankfully Horst is here to show us how to be serious. I am sure your well reasoned, facts supported things-to-say, with respect to this discussion, will be arriving shortly.
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