How is any of this possible when Denialists continue to claim that the earth just isn't warming?

Those plants and animals climbing to the tops of mountains must be doing so because they are trying to get warmer by getting closer to the sun.

Or maybe they are just trying to get as far away from us humans as possible? We are hardly the friendliest of critters on this rock. :-)

It does not suit the corporate agenda to do anything about climate change hence government inactivity. Government and corporations are one and the same.