The Volga river is the largest river in Europe, so that should be the answer.
Answer:
Carbon dioxide raises global temperature by trapping heat that would otherwise escape directly into space. Also, warming temperatures in the Arctic may release even more carbon dioxide and other greenhouse gases such as methane, by melting frozen soil called permafrost. For example, melting glaciers and icebergs in the poles claim increasing heat.
I think its because most of the people that say that have never been to Africa. And they dont know what they are talking about. If you went to Africa you would understand.
