As he has done many times before, President Trump scoffed at climate change Friday because of cold weather. "Record Cold Wave expected to hit 40 States," he said in a Truth Social post. "Could the Environmental Insurrectionists please explain — WHATEVER HAPPENED TO GLOBAL WARMING?

An unusually brutal winter storm is set to pummel more than 160 million Americans from Friday, as a stretched "polar vortex" sends a devastating blast of Arctic air, bringing heavy snows and freezing rains.

Arctic weather extremes are rising fast, harming plants, animals, people, and global climate balance worldwide.

A powerful Arctic blast is sending temperatures plunging across the U.S., raising concerns about safety, energy demand, and winter extremes.

Climate change is unexpectedly causing north Pacific storms to shift toward the Arctic, throwing projections for future West Coast weather into question.

An Arctic air mass moving across North America is causing extreme cold in Western Canada, which will continue into the weekend, according to Environment and Climate Change Canada.

Seven thousand years ago, a major section of Greenland’s ice sheet disappeared entirely. New research confirms it will happen again this century.