climate change July 23, 2020 7:10 am Extinction Event: How Climate Change May Spell Doom for the Polar Bear New study reveals the polar bear may become extinct by end of the 21st century because of climate change. Local 2:38 Met Gala couples over the years: Priyanka Chopra & Nick Jonas & more 0:28 1 dead in baby shower triple shooting in Queens, police say 0:51 Latest Forecast From Storm Team 4 0:47 Latest Forecast From Storm Team 4 1:31 Latest Forecast From Storm Team 4