Are CO2 concentrations starting to level off or decline?

Question

Are CO2 concentrations starting to level off or decline?

Answer 1

No.  Anthropogenic emissions of carbon are increasing, and thus the level of carbon dioxide in the atmosphere is increasing.  Some carbon dioxide gets absorbed by the oceans and acts to acidify the oceans, altering marine habitats.  But the oceans can't keep up with the rate of anthropogenic emissions and so atmospheric carbon dioxide levels are on the rise.

Answer 2

I hope not.

Despite the meanderings of nitwits, CO2 is and remains a trace gas, of which very little is in the atmosphere.  Without adequate CO2 levels plant life would cease to exist, followed very shortly by us ceasing to exist.

CO2 isn't a toxin, it's a vital part of the atmosphere.

Answer 3

nope

but a way to stop the co2/green house gases is to boycott gas and automoblies what happened to the old ways

Answer 4

"The concentration of CO2 in the atmosphere has reached a record high relative to more than the past half-million years, and has done so at an exceptionally fast rate. Current global temperatures are warmer than they have ever been during at least the past five centuries, probably even for more than a millennium. If warming continues unabated, the resulting climate change within this century would be extremely unusual in geological terms. Another unusual aspect of recent climate change is its cause: past climate changes were natural in origin, whereas most of the warming of the past 50 years is attributable to human activities."

"The main reason for the current concern about climate change is the rise in atmospheric carbon dioxide (CO2) concentration (and some other greenhouse gases), which is very unusual for the Quaternary (about the last two million years). The concentration of CO2 is now known accurately for the past 650,000 years from antarctic ice cores. During this time, CO2 concentration varied between a low of 180 ppm during cold glacial times and a high of 300 ppm during warm interglacials. Over the past century, it rapidly increased well out of this range, and is now 379 ppm. For comparison, the approximately 80-ppm rise in CO2 concentration at the end of the past ice ages generally took over 5,000 years. Higher values than at present have only occurred many millions of years ago."

http://www.gcrio.org/ipcc/ar4/wg1/faq/ar...

Answer 5

No they are not. The mass of people have not really done anything to change the levels, so they haven't changed. Its not as bad as it could be, but if things keep continuing exactly as they are now, it will be. More things, and more people will need moer and more power.

However, gas prices are up, and there is an ongoing demand for cars with more mpg. We're improving our technology, so i think pretty soon it will begin to level off.  We've got a long way to go before it starts declining, but I think we're on the road to getting there. A lot of people, famous and nonfamous, care about the environment. Now all we've got to do is convince those other people....

Answer 6

No, they are not.  They are rapidly increasing as humans continue to burn coal, oil, and natural gas.  Some of global warming may come from natural sources, but at a rate the planet's species can keep up with.  When we add more in, we unbalance the delecate cycle of carbon in the atmosphere.

Answer 7

No way.

With more and more of the world buying cars, and getting electric power, they're headed nowhere but up.

Lots of data from stations all over the world here, showing it.

http://gaw.kishou.go.jp/wdcgg

Answer 8

Right now they are somewhat leveling off. With stricter standards in the US we are producing slightly less greenhouse gases. But, China and India are becoming bigger and bigger producers of greenhouse gases. With minimal or no regulations on their emissions they will eventually become the largest producers if they don't seek alternative fuels like the US.

Answer 9

No, but temperatures are.

Answer 10

CO2 concentrations are increasing - they're less than 1/20th of 1% of the atmosphere but their concentrations are increasing.

It's the temperatures that have leveled off and, over the last 9-10 months, declined sharply.

Despite the increase in CO2.

EDIT: "Current global temperatures are warmer than they have ever been during at least the past five centuries," right - it's warmer now than during the LIA,  "probably even for more than a millennium" - NOT.