The striking cloud formation developed over Arctic waters north of Siberia in July 2025 as frigid air met warmer open water.
Published Jul 18, 2025
Skies are full of smoke in parts of the Canadian province as thousands of people face evacuation orders.
Published Jul 10, 2025
In addition to making rain and snow, clouds can have a warming or cooling influence depending on their altitude, type, and when they form. These maps show what fraction of an area was cloudy each month.
Feb 2000 — Jun 2025
Airborne aerosols can cause or prevent cloud formation and harm human health. These maps depict aerosol concentrations in the air based on how the tiny particles reflect or absorb visible and infrared light.
Mar 2000 — Jun 2025
These maps depict monthly total rainfall around the world. Rainfall is the primary source of fresh water for humans, plants, and animals. Rain also moves heat between the atmosphere, oceans, and land.
Jan 1998 — Jun 2025
