The Telegraph reports on a geoengineering project by climate change scientists to block the sun by simulating volcanic eruptions:
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.
The environmental scientists, David Keith of the University of Calgary in Canada, Edward Parson of the University of Michigan and Granger Morgan of Carnegie Mellon University, were writing an editorial in the journal, Nature.
They called for governments to establish a multimillion-pound fund for research into the simulated volcanoes and other solar-radiation management techniques for shielding the Earth against sunlight.
“The idea of deliberately manipulating Earth’s energy balance to offset human-driven climate change strikes many as dangerous hubris,” they wrote.
“Many scientists have argued against research on solar radiation management, saying that developing the capability to perform such tasks will reduce the political will to lower greenhouse gas emissions. We think that the risks of not doing research outweigh the risks of doing it.”
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…
[continues in the Telegraph]
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