Geoengineering could offer solution of last resort against climate change

Averting warming: The water level in the Jaguari dam, some 88km from Sao Paulo in Brazil, is at its historical lowest. Scientists are turning to geo-engineering for help. — EPA

Despite “terrifying” risks of geoengineering, the urgent nature of climate change means research must continue into the controversial technology, say scientists.

Fighting global warming by reflecting sunlight back into space risks “terrifying” consequences, including droughts and conflicts, according to three major new analyses of the promise and perils of geoengineering.