Earth
- Life
Climate warms, creatures head for the hills
Unusual data let scientists test predictions that global warming drives species up slopes.
- Earth
Lake Superior’s ups and downs
Analyses of trees and other organic material buried in a riverbank near Lake Superior’s northwestern shore shed new light on how much and when the lake level varied soon after the last ice age.
- Earth
Pterodactyls may soar once more
Paleontologists and aeronautical engineers are designing a reconnaissance drone that will mimic the flight of an ancient flying reptile.
- Humans
Arctic warming chills interest in fishing
Featured blog: An October 7 accord could put U.S. Arctic waters off-limits to fishing.
- Earth
World’s largest tsunami debris
Seven immense coral boulders — one of them a three-story-tall, 1,200-metric-ton monster — have been found far inland on a Tongan island and may be the world's largest tsunami debris.
- Earth
When trees grew in Antarctica
Fossils of trees that grew in Antarctica millions of years ago suggest a growth pattern much different than modern trees.
- Earth
Earthquake history recorded in stalagmites
Where stalagmites start and stop in caves could offer more precise clues about when major earthquakes have hit (and could again hit) the Midwest.
- Earth
A near-record Arctic melting
This summer, the area covered by Arctic sea ice dropped to its second-lowest since satellite measurements began in 1979.
- Earth
Sea-level history off the ice
For the first time, researchers have assembled a comprehensive record of how sea level varied between 542 million and 251 million years ago, more than doubling previous timelines for such fluctuations.
- Chemistry
Fluorescent bulbs offer mercury advantage
Featured blog: Switching to light bulbs that contain mercury might, surprisingly, reduce overall mercury releases to the environment. Plus, what to do when you break your fluorescent bulb.
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- Earth
Tough meteorite made a big impact
The stony meteorite that landed in a remote portion of Peru in September 2007 was traveling abnormally fast when it struck and blasted a crater that was unusually large for the its size, new analyses indicate.
