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Showing posts with label carbon dioxide. Show all posts
Showing posts with label carbon dioxide. Show all posts

Thursday, February 19, 2009

what's wrong with THIS picture?

the head of the epa actually LISTENING to scientists? why king george must have been dethroned.........and a new administration (one with morals and a conscience AND a brain) must have been installed. is it too late to save our planet? i don't know. i hope not
E.P.A. Expected to Regulate Carbon Dioxide

By JOHN M. BRODER

WASHINGTON — The Environmental Protection Agency is expected to act for the first time to regulate carbon dioxide and other greenhouse gases that scientists blame for the warming of the planet, according to top Obama administration officials.

The decision, which most likely would play out in stages over a period of months, would have a profound impact on transportation, manufacturing costs and how utilities generate power. It could accelerate the progress of energy and climate change legislation in Congress and form a basis for the United States’ negotiating position at United Nations climate talks set for December in Copenhagen.

The environmental agency is under order from the Supreme Court to make a determination whether carbon dioxide is a pollutant that endangers public health and welfare, an order that the Bush administration essentially ignored despite near-unanimous belief among agency experts that research points inexorably to such a finding...........

Tuesday, December 09, 2008

here's some interesting science

news

let's get burnin'!

Scientist says ancient technique cuts greenhouse gas

By Gerard Wynn

POZNAN, Poland (Reuters) - An ancient technique of plowing charred plants into the ground to revive soil may also trap greenhouse gases for thousands of years and forestall global warming, scientists said on Friday.

Heating plants such as farm waste or wood in airtight conditions produces a high-carbon substance called biochar, which can store the greenhouse gas carbon dioxide and enhance nutrients in the soil.

Plants absorb carbon dioxide from the atmosphere as they grow. Subsequently storing that carbon in the soil removes the gas from the atmosphere.

"I feel confident that the (carbon storage) time of stable biochar is from high hundreds to a few thousand years," said Cornell University's Johannes Lehmann, at an event on the sidelines of U.N. climate talks in the Polish city of Poznan.

Lehmann estimated that under ambitious scenarios biochar could store 1 billion tons of carbon annually -- equivalent to more than 10 percent of global carbon emissions, which amounted to 8.5 billion tons in 2007.

Under a conservative scenario the technique could store 0.2 billion tons of carbon annually, he said. That would still require heating without oxygen -- called pyrolysis -- some 27 percent of global crop waste and plowing this into the soil...........