Only zero emissions can prevent a warmer planet

http://environment.newscientist.com/article/dn13395-only-zero-emissions-can-prevent-a-warmer-planet.html ^

[chessplayer]

Greenhouse gas emissions will have to be eliminated completely to stabilise the Earth's climate and prevent temperatures from rising. That’s the conclusion of climatologists in the US who say that our current efforts to merely stabilise emissions will not be enough.

[dfwgator]

STOP BREATHING EVERYONE!!!!

And layoff them beans.

[CedarDave]

PING!!

How fun with this one!!

[vpintheak]

As long as cows keep belching, we cannot stop it.

[CedarDave]

If New Scientist leaned any further to the port side, they’d tip over and crunch their tin-foil hats.

[Gorzaloon]

If New Scientist leaned any further to the port side, they’d tip over and crunch their tin-foil hats.

..And their stern would be up in the air, where they like it.

[ConservaTexan]

Only zero emissions can prevent a warmer planet

Too late, I had a bowl of Chili for lunch. Sorry.

[jas3]

This is a link to the abstract.

And here's what the abstract says:

Current international climate mitigation efforts aim to stabilize levels of greenhouse gases in the atmosphere. However, human-induced climate warming will continue for many centuries, even after atmospheric CO2 levels are stabilized. In this paper, we assess the CO2 emissions requirements for global temperature stabilization within the next several centuries, using an Earth system model of intermediate complexity. We show first that a single pulse of carbon released into the atmosphere increases globally averaged surface temperature by an amount that remains approximately constant for several centuries, even in the absence of additional emissions. We then show that to hold climate constant at a given global temperature requires near-zero future carbon emissions. Our results suggest that future anthropogenic emissions would need to be eliminated in order to stabilize global-mean temperatures. As a consequence, any future anthropogenic emissions will commit the climate system to warming that is essentially irreversible on centennial timescales.

What it should say is ..any future anthropogenic emissions inside our model by model humans will commit the model's climate system to warming inside the model that is essentially irreversible on model centennial timescales.

jas3

[Old Professer]

The way all the current computer models work is by analysing all the known, workable variables in the present atmosphere including the current amount of CO2; using today’s global temperatures, they then enter an arbitrary amount of future CO2 along with a reference to the past [let’s say co+5] and then set the computer off to compute how much that changes the starting point.

In other words, no matter how many other variables there may be, the only one being weighted is CO2 and so, if you increase its weight you must get a warmer outcome.

These two guys just started out without the rest of the variables and then entered co+n; co+2n; co+4n, etc.

How could they help but get an increase as they added even more - there is no room in the scheme to allow a subtraction.

[Rastus]

global warming is socialism’s trojan horse

That's the most important point in the whole "environmentalism" debate. It's a pretty brilliant strategy they've hit on: indoctrinate the kids, and if you're against it, you're for dirty air, dirty water and stranding the cute li'l polar bears.

[texas_mrs]

This whole thing is a load of crap. It really IS a vast left-wing conspiracy involving Gore & a guy named Maurice Strong (there is ALOT of info about him out there that will make you wonder why you never heard of him) including the fact that even though he is a friend of algore, he is also working with the chinese against US.

Creators of carbon credit scheme cashing in on it

[thackney]

Zero CO₂ emissions?

That would require killing all animals and humans.

If this step is required, who are we saving the planet for? Future Martians?

[chessplayer]

According to this article, even if human produced co2 were to cease (instead of increasing as they are now), it would take tens of thousands of years for co2 to decline to pre-industrial levels.

http://currents.ucsc.edu/05-06/02-20/warming.asp

[Eva]

I think that there are more than a few of us that wouldn’t mind seeing a couple degrees rise in the temperatures. I live in NW WA, and we only opened our windows about three days last summer, and we don’t have air conditioning.

[avacado]

"Greenhouse gas emissions will have to be eliminated completely to stabilise the Earth's climate and prevent temperatures from rising."

The Earth's temperature has been in a cooling trend since 1998. What else would you BOZOs like to discuss?

[BMIC]

They’re partly corect. Since global warming never had anything to do with human activity in the first place, we could reduce the manmade greenhouse gas emissions to zero and it would still not reverse any warming that’s ocurring.

[chessplayer]

“It is technologically challenging, but not impossible. The biggest challenge will be to get political consensus,” says Caldeira.

Did`nt technology get us into this in the first place? Why should we trust technology to get us out of it without crating even worse problems? Law of unintended consequences.

[Myrddin]

Start chopping down the forests. Green plants metabolize internally stored carbohydrates and release CO2 and water in the dark. Both are "green house" gases.

Idiots. The earth's climate has never been "stable". It is always in flux. These idiots must have been trained in dumbed down public schools.

[Sherman Logan]

What will millions of cars spewing water vapor into the atmosphere do to the climate I wonder?

Absolutely nothing.

We already have many, many thousands of cubic miles of water directly exposed to the atmosphere, into which it can evaporate whenever the conditions are right. One hurricane puts more water vapor into the atmosphere than all the hydrogen cars man could operate for 1000 years. BTW, a primary exhaust emission of gasoline or diesel powered vehicles is water vapor.

Up to 2% or so of the atmosphere is composed of water vapor. The major factor controlling how much water is in the air is temperature. Warm things up and water evaporates into the air. Cool things down and water condenses back out. Also known as rain and snow.

[bert]

My e mail comment to Kate....

"The article is absolute drivel from beginning to end."

Send her a note ravaging her effort

[Maneesh]

And so will all the humans at which point the trees will grow back the environmental wacko’s dream of a human free planet will have been achieved !