Methane, the main component of natural gas, is the cleanest-burning of all the fossil fuels, but when emitted into the atmosphere it is a much more potent greenhouse gas than carbon dioxide.
An Escape Route for Seafloor Methane
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Thomsen River Estuary, Banks Island
Sea ice and waterways along the north side of Canada’s high-Arctic island reveal compelling patterns when viewed from above.
A Sliver of Mexico’s “Mother Mountain Range”
The Sierra Madre Oriental is part of a chain that stretches across three continents.
The Braided Brahmaputra
The river’s high sediment load contributes to the abrupt change in its shape as it exits the Himalayas and hits flatter land.
Caribbean Coral Reefs Under Siege From Aggressive Algae
Human activity endangers coral health around the world.
Painting Pennsylvania Hills
The region of rolling hills and valleys is part of a geologic formation known as the Ridge and Valley Province that stretches from New York to Alabama.
