US government knew about climate change, covered up

This 16 April 2019 video from the USA by independent senator and Democratic party presidential candidate Bernie Sanders says about itself:

The U.S. Government Knew About Climate Change Up To 5 Decades Ago

Just like Shell and other Big Oil corporations knew. And just like Big Oil, they covered it up.

I am so incredibly proud of the youth fighting against climate change. Our climate struggle would not have progressed as much as it has without their momentum and support. I thank them for their relentless work in the fight for a cleaner, safer world.