I think it might all be connected to the millions of tons of coal extracted in the US for power generation, mostly so people could watch the climate change movie "the Day After Tomorrow" on TV, over and over and over….
Or it's because of "fracking" for oil exploration!
(Just joking, I really have no clue)
The planet did not come with a safety warranty, and there have been MANY catastrophic climate events due to meteors and asteroid strikes, large comets coming too close, ice ages, etc all through history. The last ice age was only 50,000 or so years ago. Where I live the land was covered in 3 km thickness of glacial ice. Much less here today. 8^)
Like our Canadian federal environment minister McKenna said this year, "disposable plastic drinking straws are our nation's biggest environmental waste challenge." You couldn't make it up…..