The Kharola Glacier, west of Lhasa Tibet Autonomous Region. Glaciers here were warmer over the past 50 years.

Nir Elias/Reuters/File

Study blames humans for most of melting glaciers

More than two-thirds of the recent rapid melting of the world’s glaciers can be blamed on humans, a new study finds.

Specks returned from space may be alien visitors

Scientists say seven microscopic particles collected by NASA’s comet-chasing spacecraft, Stardust, appear to have originated outside our solar system.

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Emissions Swamp Efforts on Warming, U.N. Draft Report Says

Runaway growth in the emission of greenhouse gases is swamping all political efforts to deal with the problem, raising the risk of “severe, pervasive and irreversible impacts” over the coming decades, according to a draft of a major new U.N. report.

Evan Horowitz

Taking the measure of an earthquake

The Richter scale is not an intuitive way to measure the force of an earthquake.

Methane bubbling up off the East Coast

The methane is emanating from at least 570 locations, called seeps, from near Cape Hatteras, N.C., to the Georges Bank southeast of Nantucket.

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