BRIEF: A new report by the UK’s national academy of science The Royal Society warns that large scale geo-engineering projects – including solar mirrors and underground carbon storage may become necessary unless serious action is taken to curb carbon emissions in the near future. The report finds that such measures are technically achievable and could arrest global temperature increases but raises doubts about their cost-effectiveness and warns of long-term ecological side-effects. See this link: or go here for the full PDF report