Berlin and Heidelberg are two German cities that in the last five years have managed to reduce their greenhouse gas emissions by about 10 percent. Both cities belong to the C40 climate protection network, which is actively engaged in combating climate change.
The C40 network includes 27 cities around the world, with a total of 54 million inhabitants, and which have been continuously lowering greenhouse gas emissions for five years. In addition to Berlin and Heidelberg, this network includes cities such as Basel, Copenhagen, London, Los Angeles, Madrid, Milan, New York, Paris or Rome.
One of the objectives of several of these cities is to build, from 2030 on, only buildings free of CO2 emissions. More than 60 mayors have joined the global network with the goal of meeting the goal of the Paris Accord to lower global warming by 1.5 degrees Celsius by the end of this century.

Source: dpa