Is global warming affecting a change in the seasons?

Is global warming affecting a change in the seasons?

Michael Oppenheimer (Professor, Princeton University) gives expert video advice on: What has been causing polar bears in the Arctic to drown in record numbers?; Is global warming affecting a change in the seasons? and more...

Global warming is affecting the seasons. Autumn and winter are coming later in many places; spring is coming earlier. If you look at a typical lake or maybe a stream in the far North it melts earlier in the spring and it freezes later in the fall. The very timing of the seasons is changing such that the food sources for some insects and birds are not in the places they are supposed to be when the migrations of these creatures arrive at the place where they are expected to be fed. And so, the very timing of nature and the seasons is being upset by global warming.