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Carbon dioxide emissions continue significant climb

Date:
November 25, 2009
Source:
Woods Hole Oceanographic Institution
Summary:
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."

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 climate change."

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.

WHOI and WHRC, along with the Marine Biological Laboratory, make up the Woods Hole Consortium, an alliance that focuses on the interlocking issues of climate change and ecosystems health and human well-being.


Story Source:

The above story is based on materials provided by Woods Hole Oceanographic Institution. Note: Materials may be edited for content and length.


Cite This Page:

Woods Hole Oceanographic Institution. "Carbon dioxide emissions continue significant climb." ScienceDaily. ScienceDaily, 25 November 2009. <www.sciencedaily.com/releases/2009/11/091124174622.htm>.
Woods Hole Oceanographic Institution. (2009, November 25). Carbon dioxide emissions continue significant climb. ScienceDaily. Retrieved September 20, 2014 from www.sciencedaily.com/releases/2009/11/091124174622.htm
Woods Hole Oceanographic Institution. "Carbon dioxide emissions continue significant climb." ScienceDaily. www.sciencedaily.com/releases/2009/11/091124174622.htm (accessed September 20, 2014).

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