Thursday, January 28, 2010

Mad Scientists Want To Simulate Volcanoes To Block Sun

A geoengineering project to block the sun by simulating volcanic eruptions would be cheaper than cutting greenhouse gas emissions, climate change scientists said.

A global plan to put man-made particles into the atmosphere to deflect the Sun's heat would rapidly lower global temperatures until cuts in carbon dioxide emissions took effect, they argued.

They acknowledged concerns about geoengineering but said multi-national experiments should begin soon before it is too late to reverse climate change or in case a rogue state carried out separate measures.

They said the cost of solar radiation management was 100 times lower than the price tag for cutting emissions to achieve the same effect, raising the risk that small groups of nations or even rogue states could act alone.