April 7, 2006

OH, LET’S JUST ALL JOIN HANDS AND JUMP OFF A BRIDGE

Air trends 'amplifying' warming (Richard Black, BBC, April 7th, 2006)

Research presented at a major European science meeting adds to other evidence that cleaner air is letting more solar energy through to the Earth's surface.

Other studies show that increased water vapour in the atmosphere is reinforcing the impact of man-made greenhouse gas emissions.

Scientists suggest both trends may push temperatures higher than believed. [...]

Between the 1950s and 1980s, the amount of solar energy penetrating through the atmosphere to the Earth's surface appeared to be declining, by about 2% per decade.

This trend received some publicity under the term "global dimming".

But in the 1980s, it appears to have reversed, according to two papers published last year in the journal Science.

The decline in Soviet industry and clean air laws in western countries apparently reduced concentrations of aerosols, tiny particles, in the atmosphere.

These aerosols may block solar radiation directly, or help clouds to form which in turn constitute a barrier; or both effects may occur.


Posted by Peter Burnet at April 7, 2006 8:21 AM
Comments

Well, of course it does. Personally, I like clean air, but the environmentalists do insist that we must sacrifice by immediately stopping whatever we're doing that contributes to global warming. Everyone out to the garage and take off your catalytic converters.

Posted by: David Cohen at April 7, 2006 8:42 AM

I can never remember, is ozone layer coming or going?

Posted by: erp at April 7, 2006 9:47 AM

Global warming is a well-established fact. It is the question of anthropogenesis of same that is still waaaay up in the air (no pun intended). It may be, in fact, that human activities both hinder and help global warming in equal proportions, leaving our net impact on global temperatures at zero. The primary source of global warming, after all, is that big yellow thingy that comes up in the east every morning and cooks us all day long until it goes down in the west in the evening.

Personally, I don't like global warming, because I like snow. Other people living in other parts of the world may have more serious reasons to worry about it, such as droughts, floods, and temperatures rising above habitability levels. But pretending that we know what to do about this is highly premature, unless we suddenly develop the ability to orbit enough flexible mirror arrays that we can increase or reflect the amount of sunlight reaching the earth's surface at will.

Having said that, I am still all for reducing particulate pollution in the atmosphere. Regardless of what it does to the climate, either pro or con. Breathing (and looking through) black sooty stuff is no fun.

Posted by: HT at April 7, 2006 10:09 AM

So this means the new ideal for the global warming crowd would be Pittsburgh in the 1940s?

Posted by: John at April 7, 2006 10:10 AM

The fallacy is starting with the notion that there's some perfect natural state and all our actions must be made with regards as to how much it will cause the world to deviate from that state. Why is it so hard for Dirt Worshippers to get it throught their rammed earth thick heads that it's a dynamic system, with a wide range of possible equilibrium states, so there is no perfect world?

Personally, I think that if so-called global warming is really happening and must be stopped, then we should set off a whole bunch of nukes and counteract it with a "Nukular Winter." We can call it the Carl Sagan Memorial Climate Control Project. It seems Iran and North Korea willing to volunteer the necesssary real estate for a pilot project. (Although his estate, in the spirit of that pompous, sanctimonious blowhard, might prefer his name be replaced with Butt Head Astronomer.)

Posted by: Raoul Ortega at April 7, 2006 10:15 AM

Again, the left has become the reactionary party. "Change is bad; Up with stasis."

Posted by: David Cohen at April 7, 2006 10:19 AM

I predict that the globe will continue to get warmer, unless it doesn't. This will be disastrous for humanity, unless it isnt.

Posted by: Robert Duquette at April 7, 2006 11:20 AM

where are those human shields when you need them ?! geesh.

Posted by: toe at April 7, 2006 11:36 AM

Flip-flop, flip-flop.

Posted by: Lou Gots at April 7, 2006 12:06 PM

Say, that sounds like a potential folk song...

*sings* "Since improved tech-NO-logy is sacri-LEGE,
"Oh, let's just all join HANDS... and jump off a BRIIIIIDGE!"

Now, what rhymes with "anthropogenesis"? Hmmm...

Posted by: Just John at April 7, 2006 1:48 PM

HT;

Actually, we do know how to put up enough sunshades hanlde the problem and could do it for much less than the cost of complying with the Kyoto treaty. The fact that the option isn't discussed tells you what you need to know about the real motives of the doom sayers.

P.S. How, you ask? Just put them at the Sun-Earth L1 point and spin stablize them. We have already done that with space probes, it's just a matter of scaling up. Sure, it'd cost a few hundred billion dollars, but that's only 2-3 years of the Kyoto compliance cost, so it would be relatively cheap.

Posted by: Annoying Old Guy at April 7, 2006 2:34 PM

AOG: hadn't thought of that. Of course, they'd have to be adjustable, just in case our preliminary swags at the correct amount of shade proved to be ever so slightly, er, completely wrong. I mean, I like snow, but I'm not prepared to do an Iditarod to work every day.

Posted by: HT at April 7, 2006 2:43 PM

AOG:

Even cheaper if we just wait a few years and then catapault them into place, no?

Posted by: Peter B at April 7, 2006 2:44 PM

...now there ain't no jobs to fund their 'full boat benefits,

cuz they believed global warming had anthropogenisis.

___

Some how the word doesn't fit the genre.

Posted by: Bruno at April 7, 2006 5:14 PM

"A few years" might mean thirty, but space elevators and catapults are a no-brainer, once materials science provides the means.

Posted by: Michael Herdegen [TypeKey Profile Page] at April 9, 2006 5:23 AM

In either case a sunshade is about the only way to actually deal with Global Warming in any meaningful way, since it's the only solution that addresses the actual cause of Global Warming: that giant fusion reactor that sits in the center of our solar system.

Posted by: Robert Modean at April 9, 2006 1:50 PM
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