atmosphere of the EarthClick to enlarge
Interventions in the complex structure of the atmosphere can have incalculable consequences.
Source: Kobes /

Table of Contents


Climate change is one of the greatest challenges of the present day. Mankind has traditionally adopted two different strategies for combating climate change: reducing greenhouse gas emissions and adapting to unavoidable climate change.

For some time now there has been an increasing political focus on ideas and suggestions designed to combat climate change by using technological means to influence global systems. These suggestions are subsumed under the heading of “geoengineering” or “climate engineering”. Most of the proposals for geoengineering measures are still at the theoretical stage. Geoengineering is nevertheless seen by some as a policy option.

A recent policy brief summarises proposed geoengineering measures and their impacts and gives an overview on the existing international governance.