The question of Geoengineering

This article published by the Guardian explores some of the issues surrounding the use of geoengineering methods to combat climate change:

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. But research into deliberately interfering with the climate system must continue in search of technology to use as a last resort in combating climate change, scientists have concluded.

Billions of people would suffer worse floods and droughts if technology was used to block warming sunlight, the research found. Technology that sucks carbon dioxide from the air was less risky, the analysis concluded, but will take many more decades to develop and take effect.

The carbon emissions that cause climate change are continuing to rise and, without sharp cuts, the world is set for “severe, widespread, and irreversible impacts”. This has led some to propose geoengineering but others have warned that unforeseen impacts of global-scale action to try to counteract warming could make the situation worse.

Matthew Watson, at the University of Bristol, who led one of the studies in the £5m research programme, said: “We are sleepwalking to a disaster with climate change. Cutting emissions is undoubtedly the thing we should be focusing on but it seems to be failing. Although geoengineering is terrifying to many people, and I include myself in this, [its feasibility and safety] are questions that have to be answered.”

To read more about the changing world and what you can do to prepare, visit: www.greatwavesofchange.org

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