Why do people believe in global warming

Climate change

Humans are jointly responsible for the climate changes in the coming decades and therefore have a duty to develop a global strategy to contain the consequences.


At the end of September I read a newspaper article that shed a completely different light on climate change: It was asked how many climate researchers, laypeople and politicians actually "believe" in anthropogenic, i.e. man-made, climate change. So a question of faith? Do we now vote and decide on the scientific result by majority vote? That would be a novelty in the history of research, since facts should count and the untenable - even if it sometimes takes a long time - should be rejected: like with the earth and the disk, which would have surely outstripped the sphere in a medieval vote .

Hardly anyone will take the article as a vote for "scientific majority decisions", but the wide range of opinions shows quite clearly: It is a topic that affects everyone; it has so many facets that it is difficult to come up with a clear understanding - possibly due to a lack of background knowledge. We know a lot about the interrelationships of the earth's climate, but some knowledge gaps are still very large. Open questions and criticism of the state of research are therefore part of the business.

In the following I would like to discuss some of these key questions: What is the difference between weather and climate? Why does science assume that the current climate change is different from the previous natural climate changes on our planet? Why is it not a contradiction in calculating scenarios for our climate a hundred years from now when we - the meteorologists - tirelessly point out that a weather forecast can only be described as reliable for a few days? Why does criticism of the research results have to be allowed? Why should a region continue its efforts to protect the earth's climate, even if it feels that its efforts are being thwarted elsewhere on the globe?