Bob Henson, weather and climate blogger at Weather Underground, discuss the arctic blast of cold air the United States has seen over the last couple of weeks and the "bomb" cyclone that meteorologists are calling winter storm Grayson.
Henson tells us what a "bomb" cyclone is, noting that "Grayson" is actually a "double bomb" because of the intensity and speed at which the pressure dropped.
We also talk the differences between climate and weather, referencing President Trump's tweet that insinuates that cold weather might be a reason to dismiss climate change is real.
Henson also compares winter storm Grayson to 1993's "Storm of the Century," breaking down the differences and similarities between the two.
The proportion of U.S. kindergartners exempted from school vaccination requirements has hit its highest level ever, 3%, U.S. health officials said Thursday.
New research shows that people can be genetically predisposed to having sleep problems like insomnia and that these signs can show up in early childhood.
The National Zoo's three giant pandas, Mei Xiang, Tian Tian and their cub Xiao Qi Ji. on Wednesday began their long trip to China, leaving behind an empty panda exhibit with no certainty that pandas ever would again take up residence there.