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Wildfires Threaten Northern Alberta

Wildfires Threaten Northern Alberta

Some residents of High Level, Canada, were forced to evacuate in the face of a large and out-of-control wildfire that has started advancing toward the town.

Published May 21, 2019

Image of the Day Atmosphere Heat Land Fires Human Presence

How Glaciers Turn Lakes Turquoise

How Glaciers Turn Lakes Turquoise

Fine particles of pulverized rock absorb and scatter sunlight in ways that can give water a striking blue-green color.

Published May 20, 2019

Image of the Day Snow and Ice

Glint of the Irrawaddy Delta

Glint of the Irrawaddy Delta

Sunlight traces the mouth of one of Asia’s great rivers—a major artery for commercial and sediment transport.

Published May 19, 2019

Image of the Day Land Water

Spring Freeze in the Labrador Sea

Spring Freeze in the Labrador Sea

Filaments of sea ice stretch across the waters off southern Greenland, an area that is typically ice-free.

Published May 18, 2019

Image of the Day Snow and Ice

Wildfire Smoke Shrouds Mexico City

Wildfire Smoke Shrouds Mexico City

Officials declared an environmental emergency due to unhealthy air quality.

Published May 17, 2019

Image of the Day Heat