Is the greenhouse effect caused by people?
Without the natural greenhouse effect, there would be no life on earth. But the greenhouse gases such as carbon dioxide and methane are reinforcing the effect in a way that is harmful.
Information and ideas:
For the direct reflection of the incoming radiation, an albedo (reflection capacity of diffusely reflecting surfaces such as ice and snow) of approx. 0.30 is assumed with and without atmosphere, since the earth is not an ideal black-body radiator.
The anthropogenically enhanced greenhouse effect and changes in solar activity are the main causes of climate change! Scientists have agreed that both effects influence the earth's climate. What has not yet finally been determined is the percentage effect of each factor on the changes in the climate of the earth. In terms of specialist teaching, this subject involves some complex physics. One of the most difficult questions is the matter of radiation balance: Why does it get warm on earth although almost 100% of the earth's energy is radiated away?