Global warming appears to have shifted into a faster gear. After removing the effects of El Niño, volcanic eruptions, and solar cycles, researchers found that the planet has warmed at roughly 0.35°C per decade over the past ten years, compared with just under 0.2°C per decade from 1970 to 2015. The acceleration, which becomes visible around 2013 to 2015, appeared across five major global temperature datasets with more than 98% statistical certainty.
They do so because of perverse incentives. They socialize the costs and privatize the gains. This is a fundamental design flaw of Capitalism and in turn Corporations.
Humans harm nature in EVERY form of society.
This is a bit of a cop out though. At the moment a very small number of humans do a very large amount of the harm because there is no cost to doing so.