Scientists suggest a giant sunshade in the sky could solve global warming

Scholars from developing countries call for greater say in solar geoengineering research, arguing poor nations have most at stake

It sounds like the stuff of science fiction: the creation, using balloons or jets, of a manmade atmospheric sunshade to shield the most vulnerable countries in the global south against the worst effects of global warming.

But amid mounting interest in "solar geoengineering" - not least among western universities - a group of scientists from developing countries has issued a forceful call to have a greater say in the direction of research into climate change, arguing that their countries are the ones with most at stake.