Wednesday, January 16, 2013

results suggest that there may be untapped potential for mitigating climate change by reducing emissions of soot

soot from wood smoke and diesel exhaust can have twice the impact on global warming than previously thought, according to a new study released Tuesday.

The "black smoke" is said to be the second largest artificial agent of climate change.

The results, published in the Journal of Geophysical Research, Atmospheres suggest that there may be untapped potential for mitigating global warming by reducing emissions of soot.

huge amounts of soot by man into the atmosphere each year. Approximately 7.5 million tonnes, was published only in 2000, according to estimates. A greenhouse effect which carbon dioxide and more than two thirds of methane.

The main source of soot emissions is the burning of forests and savannah grasslands. But diesel engines account for about 70% of emissions from Europe, North America and Latin America.

In Asia and Africa, wood, home fires account for 60% and 80% of soot emissions. Coal fires are also a major source of soot in China, parts of Eastern Europe and the countries of the former Soviet bloc.

soot warms the atmosphere by absorbing the sun's heat incoming and scattered.

Dr. David Fahey, co-author of the U.S. National Oceanic and Atmospheric Administration (NOAA), said: "This study confirms and extends beyond other research suggesting carbon black a strong warming effect just before methane. "

His colleague, Professor Piers Forster from Leeds University, Earth and Environment, said. "There are exciting opportunities for cold climate by reducing emissions of soot, but not simple

"Reducing emissions from diesel engines and interior wood and coal fires is obvious that there Tandem health and climate benefits.
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