In Just 200 Years, We Reversed This 50-Million-Year Climate Trend

https://www.truthdig.com/articles/in-just-200-years-we-reversed-this-50-million-year-climate-trend/

Humankind, in two centuries, has transformed the climate. It has succeeded in reversing a 50-million-year cooling trend.

So cogent have been the warnings from the distant past that researchers argue that the epoch in which modern humans flourished – geologists call it the Holocene – effectively came to an end midway through the 20th century.
What initially provided a safe operating space for emerging humanity will, they think, become known as the Anthropocene, because human activity has now so dramatically changed the climate, the landscape and the conditions under which other lifeforms flourish.
“The further we move from the Holocene, the greater we move out of safe operating space,” Professor Williams said.
“In the roughly 20 to 25 years I have been working in the field, we have gone from expecting climate change to happen to detect its effects, and now we are seeing it is causing harm.