Everything from population to food production to freshwater availability has its own point of no return — including the fertility of soil. Has large-scale agriculture already taken us past the point of Peak Soil?

As the climate changes, warmer conditions are creeping northward — and termites, among other creatures, are likely to expand their territories into higher latitudes. Those areas, however, are currently ill-equipped to handle termites, which could cause billions of dollars in property damages.

Buried beneath Alaska’s North Slope are an estimated 17 trillion cubic meters of frozen methane, or natural gas. Getting the gas out of the reservoirs poses technical problems and serious risks — but a new approach that proposes to pump carbon dioxide in to replace the methane could help to solve two looming problems.

Scientists familiar with the geology of Hispaniola, the island that includes Haiti and Dominican Republic, have warned for years the region was overdue for a major quake. And, they say, it's likely that the quakes are not over.

The U.K. is set to have its own space agency, which officials hope will raise the profile of the country's space program.

The people of Xuan Wei, China, suffer the world's highest incidence of lung cancer among non-smokers. Burning coal from the Permian-Triassic boundary may be to blame.

The largest measured earthquake ever to strike Haiti rocked the heavily populated island nation Tuesday.

The planet CoRoT-7b, discovered orbiting a distant star in February 2009, is five times as large as Earth but sizzling hot — so hot its atmosphere vaporizes rocks.

A new discovery of fossilized footprints of tetrapods — the earliest known vertebrates with four limbs instead of fins — is changing what scientists thought about the timing of the transition from swimming to walking vertebrates.

Earthquakes occurring on different sides of the world devastated Tajikistan and the Solomon Islands Monday.