President Trump cited a major winter storm​ as evidence to suggest that global warming does not exist — a misleading claim that has been consistently debunked by climate experts.

The possibility of snow in Tampa, Fla. Record heat and fires in Australia. Scientists say climate change is exacerbating weather extremes.

The report warns many economic models are failing to capture extreme weather events and rising uncertainty likely to dominate impacts in a hotter world.

Human-caused climate change worsened recent torrential rains and floods that devastated parts of southern Africa, killing more than 100 people and displacing hundreds of thousands, researchers said Thursday.