In the face of dire forecasts for anthropogenic climate change, climate engineering is increasingly discussed as a possible additional set of responses to reduce climate change's threat. These proposals have been controversial, in part because they – like climate change itself – pose...

Climate engineering, or geoengineering, is a group of proposals to intentionally intervene in global physical, chemical, and biological systems on a massive scale in order to reduce the threat of anthropogenic climate change. Climate engineering is receiving increasing attention, and research is...