Friday :: Apr 25, 2008

You'd Think Someone Would Want To Do Something About This


by Turkana

Like reverse the trend, not increase it.

National Oceanic and Atmospheric Administration:

Last year alone global levels of atmospheric carbon dioxide, the primary driver of global climate change, increased by 0.6 percent, or 19 billion tons. Additionally methane rose by 27 million tons after nearly a decade with little or no increase. NOAA scientists released these and other preliminary findings today as part of an annual update to the agency’s greenhouse gas index, which tracks data from 60 sites around the world.

The burning of coal, oil, and gas, known as fossil fuels, is the primary source of increasing carbon dioxide emissions. Earth's oceans, vegetation, and soils soak up half of these emissions. The rest stays in the air for centuries or longer. Twenty percent of the 2007 fossil fuel emissions of carbon dioxide are expected to remain in the atmosphere for thousands of years, according to the latest scientific assessment by the International Panel on Climate Change.

Viewed another way, last year’s carbon dioxide increase means 2.4 molecules of the gas were added to every million molecules of air, boosting the global concentration to nearly 385 parts per million (ppm). Pre-industrial carbon dioxide levels hovered around 280 ppm until 1850. Human activities pushed those levels up to 380 ppm by early 2006.

Turkana :: 7:15 PM :: Comments (8) :: Digg It!