Discovery of hidden CFC emissionsFor a long time, the Montreal protocol has been taken as a success story on how to implement an international agreement on environmental sustainability. It was key to protect the Earth's ozone layer. Recently, however, researchers found out that chlorofluorocarbon (CFC) emissions have been increasing again. This case exemplifies the importance of independent monitoring measures - also in the case of green house gases (GHG).
The editorial of Martin Heimann, arranged with our partner Deutsches Klima Konsortium (DKK), is so far available in German only.