Rare weather phenomenon triggers air-quality alerts in D.C.
February 7, 2019, 11:12 a.m. by Michael d'Estries
A 'capped inversion' trapped air pollutants near the ground.
Magnetic north shifting by 30 miles a year, might signal pole reversal
February 5, 2019, 10:19 a.m. by Bryan Nelson
The magnetic pole is moving faster than at any time in human history, causing major problems for navigation and migratory wildlife.
Could this ancient relic still be the best way to heat your home?
January 31, 2019, 8:13 a.m. by Christian Cotroneo
The cost differences between radiators and forced air may be nothing to get fired up about.
You can thank the polar vortex for this beastly blast of winter
January 28, 2019, 11:50 a.m. by Noel Kirkpatrick
It's going to be a long, cold winter.
The nights are long but beautiful during a Norwegian winter
January 17, 2019, 10:09 a.m. by Noel Kirkpatrick
Polar nights hide the sun from December to February.
A violently beautiful storm with no name churns in the Pacific
January 14, 2019, 4:10 p.m. by Noel Kirkpatrick
A large storm swirled in the Pacific Ocean late last week with a pressure similar to that powerful hurricanes.