USATODAY.com - Study: Polar bears may turn to cannibalism

This is all done by us humans causing global warming. If this doesn't make you sick I don't know what else will. I knew they were drowning because the ice floes are smaller and break apart when they try to climb upon them. This is just one more heartbreaking thing to read about.

When polar bears (among other animals) are all gone, is that when some people will finally get it through their heads that global warming is REAL?