Recent projections to stay within 2°C and especially 1.5°C rely upon both more aggressive emissions cuts and larger scales of “negative emission technologies” (NETs). Yet not only are NETs' actual development and scalability still uncertain, the technologies would present social and...

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...

Solar climate engineering is under increasing consideration as a potential means to reduce climate change risks. Its field research may generate knowledge to reduce climate risks to humans and the environment and will, at sufficient scales, pose its own risks, some of which will be...

Svoboda and Irvine (S2014) consider possible compensation for harm from solar radiation management (SRM) geoengineering, implying that both SRM and compensation are futile efforts, bound to do more harm than good. However, the shortcomings of SRM and compensation for its potential negative...

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...

The widespread concern that research into and potential implementation of climate engineering would reduce mitigation and adaptation is critically examined. First, empirical evidence of such moral hazard or risk compensation in general is inconclusive, and the empirical evidence to date in the...

Governance of solar geoengineering is important and challenging, with particular concern arising from commercial actors’ involvement. Policies relating to intellectual property, including patents and trade secrets, and to data access will shape private actors’ behavior and regulate access to...

Solar climate engineering — intentional modification of the planet’s reflectivity — is coming under increasing consideration as a means to counter climate change. At present, it offers the possibility of greatly reducing climate risks, but would pose physical and social risks of its own....

Climate change is one of the greatest challenges confronting society today. Solar climate engineering (SCE) has the potential to reduce climate risks substantially. This controversial technology would make the earth more reflective in order to counteract global warming. Though the science of SCE...