Oslo — Scientists in developing nations plan to step up research into dimming sunshine to curb climate change, hoping to judge if a man-made chemical sunshade would be less risky than a harmful rise in global temperatures. Research into "solar geo-engineering", which would mimic big volcanic eruptions that can cool the Earth by masking the sun with a veil of ash, is now dominated by rich nations and universities such as Harvard and Oxford. Twelve scholars, from countries including Bangladesh, Brazil, China, Ethiopia, India, Jamaica and Thailand, wrote in the journal Nature on Wednesday that the poor were most vulnerable to global warming and should be more involved. "Developing countries must lead on solar geo-engineering research," they wrote in a commentary. "The overall idea is pretty crazy but it is gradually taking root in the world of research," lead author Atiq Rahman, head of the Bangladesh Centre for Advanced Studies, told Reuters by phone. The solar geo-engineering studies...
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