Weather expert says historical satellite data is too crude to make a connection between climate change and the onset of more intense hurricanes in recent years.

An entirely new type of volcanism may produce the small volcanoes of the western Pacific Ocean's "petit spot," scientists report.

Urban sprawl is wreaking weather havoc, as the heat trapped in cities triggers stronger thunderstorms, heavier downpours, and more floods, scientists warn.

See the huge sea farms where juvenile tuna are fattened up and sold before they can breed. Bluefin tuna in the Atlantic are nearing extinction because of overfishing, warns conservation group WWF.

Abandoned swimming pools in New Orleans harbor a new threat: disease-carrying mosquitoes. So scientists have recruited the help of little fish that put a big bite on the bugs.

WWF calls for immediate end to fishing of bluefin tuna, says widespread illegal overfishing has nearly destroyed the species in the Atlantic and Mediterranean.

Shaken by a number of coastal calamities, Brazilians are taking steps to preserve the country's more than 5,000 miles (8,000 kilometers) of sand beaches.

Creating an authoritative panel on species loss, similar to the main UN panel on climate change, would help the biodiversity community become more organized and integrated, experts say.

The world's wild tigers have 40 percent less habitat than they did just a decade ago and occupy only 7 percent of their historic range, according to a new report on the big cats.

A new generation of pipes that bend and move with the ground during a quake instead of rupturing could prevent fires and speed up disaster recovery, scientists say.

A study of ancient climate change in the eastern Sahara provides further evidence that the drying desert gave rise to the Egyptian pharaohs.

Reducing greenhouse-gas emissions in the developing world could be as simple as installing new boilers and fluorescent lights, a new UN project has shown.

The pronghorn's seasonal journey is the longest land-mammal migration in the continental United States. But development might be closing off the creature's historic paths through the West.

Moses may have had some help when, according to the Bible, he parted the Red Sea. A recent tear in Earth's crust near the sea is the largest single rip seen since satellite monitoring began, scientists say.

The Sichuan Giant Panda Sanctuaries in China and the agave-growing region of Jalisco in Mexico are among 18 new sites added to the UN's list of naturally and culturally important places.