CO2 emissions continue significant climb

November 24, 2009

The annual rate of increase in carbon dioxide emissions from fossil fuels has more than tripled in this decade, compared to the 1990s, reports an international consortium of scientists, who paint a bleak picture of the Earth's future unless "CO2 emissions [are] drastically reduced."

These CO2 emissions increased at a rate of 3.4% per year from 2000 to 2008, in contrast to 1% each year in the previous decade, scientists from the Global Carbon Project report in the current issue of Nature Geoscience. The team comprises some 30 researchers from around the world, including Scott C. Doney, senior scientist at the Woods Hole Oceanographic Institution (WHOI) and Richard A. Houghton, senior scientist and acting director of the Woods Hole Research Center (WHRC).

Since 2000, the scientists documented an overall increase of 29% in global CO2 emissions. They attributed the rise to increasing production and trade of manufactured products, particularly from emerging economies, the gradual shift from oil to coal and the planet's waning capacity to absorb CO2.

Doney led a team that developed ocean-model simulations for estimating the historical variations in air-sea CO2 fluxes.

"Over the last decade, CO2 emissions have continued to climb despite efforts to control emissions," Doney said. "Preliminary evidence suggests that the land and ocean may be becoming less effective at removing CO2 from the atmosphere, which could accelerate future ."

A key element of the report, according to Doney, was the work of Houghton, acting director of WHRC. "He developed the estimates of carbon emissions from deforestation, a major source of human-driven carbon emissions," Doney said.

"Although the emissions of CO2 from deforestation accounted for only about 15% of total CO2 emissions over the period 2000-2008, reducing deforestation is one of the activities that could contribute significantly to stabilizing the concentration of CO2 in the atmosphere," Houghton said. Negotiations at COP-15 in Copenhagen next month will take up this issue in earnest.

Source: Woods Hole Oceanographic Institution

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2.7 / 5 (7) Nov 24, 2009
Right now all scientists and reports showing AGW and CO2 in the atmosphere should be considered suspect. Until AGW proponents can show that the leaked documents that show AGW is a scam, is fraudulent, how can anyone believe anything any of these scientist say?

2.8 / 5 (5) Nov 24, 2009
Nice logic there, smokey. I think by that same logic, we should also now suspect all soldiers deployed in Iraq of premeditated execution-style killings, because of the incident currently being discussed in the MSM...

On the other hand, I have a feeling the 'leaked documents' are much more of a molehill than the mountain you think they are. But then, you probably know that already. See, I do give you credit, and I understand where you're coming from. By all means, do carry on your politicking. After all, it doesn't really matter what any of us does, whether right or wrong: in the end, we all end up dead ;-)
1 / 5 (2) Nov 26, 2009
Ok, given:
1) the rate of increase of CO2 emissions have increased 3 times in the last decade, and
2) the global temperature has decreased for the past decade.
From this you could come to three possible conclusions:
1) CO2 is causing the world to cool, or
2) CO2 is not a primary factor in global climate, or
3) CO2 is a primary factor and it would be a heck of a lot colder than it would have been without it.
Nov 27, 2009
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2 / 5 (4) Nov 27, 2009
Has anyone ever looked at an IR transmission chart?
CO2 absorbs photons in specific bands and radiates in specific bands. Each molecule does this, 1 photon at a time, one molecule at a time. Given the total photo flux from the sun is limited, there is a limit to the number of photons absorbed regardless of the number of CO2 molecules.
"Because a linear increase in temperature requires an exponential increase in carbon dioxide (thanks to the physics of radiation absorption described above), we know that the next two-fold increase in CO2 will produce exactly the same temperature increase as the previous two-fold increase. "

3 / 5 (2) Nov 28, 2009
we know that the next two-fold increase in CO2 will produce exactly the same temperature increase as the previous two-fold increase. "

So what is your explanation for the temperature drop we've measured for the past ten years? Increasing CO2?
2.3 / 5 (3) Nov 28, 2009
we know that the next two-fold increase in CO2 will produce exactly the same temperature increase as the previous two-fold increase. "

So what is your explanation for the temperature drop we've measured for the past ten years? Increasing CO2?

I see your point. I was trying to point out that there is a limit to the amount of heat CO2 can absorb. Doubling the amount of CO2 won't absorb twice as much energy (unless the amount of energy available to absorb doubles as well.) I good analogy I read was doubling the number of shades on a window won't make the room twice as dark.

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