Even Coral can migrate

Global warming will increase plant life and rain forests. The more plants in areas that were previously frozen wastelands means more animal life can be supported. If significant global warming were actually going to occur (and unfortunately since 1998 the world temperature has stopped rising), it would mean more animal life and more animal diversity. When arguing with people about this they say that is fine in the long run, but in the short run there will be extinctions. The most obvious response to that is that animal habitat can move, and besides we are unfortunately only talking about a degree change over the next hundred years. Coral has often been pointed to as one type of life that can't move and will be harmed by any significant warming. But that too seems to be wrong:

While scientists have warned that global warming could devastate Australia's coral reefs, there's now evidence coral may be able to migrate to cooler waters.

After analysing fossils from a warm period 125,000 years ago, the scientists have concluded that coral may move south once more to escape warming oceans.

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