An El Niño event is very likely under way, amping up extreme weather already made worse by climate change and increasing the odds that 2019 will be the hottest year in recorded human history, scientists warn.

There is an 80 percent chance a full-fledged El Niño has already begun and will last until at least the end of February 2019, according to the Climate Prediction Center at the National Oceanic and Atmospheric Administration.

The impacts of El Niño have been more severe in recent years because of global warming, and these impacts will be worse as temperatures continue to rise, according to a recent study in the journal Geophysical Research Letters.

“With an El Niño, it’s entirely possible 2019