Trout is a fish that usually lives in the cold waters, hence, global warming, heats up the rivers, hence, they can die due to the lack of natural habitat.Another example is fish generally, this is because the carbon acidifies and warms up the seawater, hence, the "scent" that tells them that predators are nearby, instead of them swimming away, they move towards the predator.
There is no such thing as global warming. A polar bear is a bear, not a human. It is natural for it to eat. Bears like the Black Bear eat people's rubbish. The earth 'heating' up would not cause an animal to do strange things. Global warming does not effect the way we behave, so why should it effect animals?
Google it, yu ca see many examples, not just polar bears.
Global Warming like I said not only increase the temprature, but also increase the acidity, hence destroying corals as well because of the acidity. Zooanthalle or something like that leaves the cprals due to global warming and they lose their nutrition and colour as well.