Geoengineering

The concept of geoengineering (or climate engineering, climate remediation, and climate intervention) refers to "the deliberate large-scale intervention in the Earth’s climate system, in order to moderate global warming". The discipline divides broadly into two categories, as described by the Royal Society: "Carbon dioxide removal techniques address the root cause of climate change by removing greenhouse gases from the atmosphere. Solar radiation management techniques attempt to offset effects of increased greenhouse gas concentrations by causing the Earth to absorb less solar radiation." The Intergovernmental Panel on Climate Change concluded in 2007 that geoengineering options remained largely unproven. It was judged that reliable cost estimates for geoengineering had not yet been published.