Fish species are disappearing as Swiss lakes warm up

Lake Geneva is warming 4 to 5 times faster than the oceans, climate experts estimate. As a result, emblematic fish species of the great Alpine lake, such as perch, fera or the Arctic char, have become much rarer in recent years. Professional fishermen are slowly watching their livelihoods ebb away. As temperatures climb in Switzerland, Swiss lakes, fish species and their natural habitat are also suffering. This summer again saw scorching temperatures and in early August the surface water of Lake Geneva was almost 26° degrees Celsius...