They have know it is real back in the 1940’s and moved to make sure as little is done on it as possible so that they can make their billions and damn the rest of us. Though more recently they have acknowledged its reality like Exxon-Mobile a few years ago. Because they see that they are living during it. Even so they want that money first and they and the others will burn the last 5 gigatons of carbon first that will tip the climate scales into the very hot. To the 9-11 degrees C (16.2 °F – 19.8 °F) which could mean heat death for most life on this planet.
Even the green Antarctic will start to get balmy by then. We just may give ourselves a Mesozoic climate or worse yet the End Permian climate that killed off most life. All done by human hands. Greed kills everything including us.
April 12, 2017