Earth
- Climate
Eocene temperature spike caused by half as much CO2 as once thought
Revised experiments demonstrate that hot temperatures during the Eocene resulted from lower carbon dioxide concentrations than previously thought.
- Climate
How to melt an ice cave
Frigid winter air keeps gives ice caves their perpetual chill, researchers find, warning that airtight seals on some ice caves could cause the frigid formations to melt within decades.
- Earth
New fascination with Earth’s ‘Boring Billion’
The Mesoproterozoic era, known as the boring billion, had very low oxygen, but it set the stage for the evolution of animals.
- Oceans
Rising temperatures complicate efforts to manage cod fishery
Higher water temperatures in the Gulf of Maine could play a role in Atlantic cod crashes.
- Earth
Parched parts of Earth expanding
More drylands, largely impacting developing nations, are forecasted for near future.
- Climate
Wi-Fi threatens weather forecasts
Interference from wireless technology threatens the usefulness of weather radar, meteorologists warn.
- Climate
Hurricane Patricia’s howling winds smash records
Hurricane Patricia’s winds are now the fastest ever recorded in a tropical cyclone, making it the strongest hurricane on record in the Western Hemisphere.
- Paleontology
300 million-year-old giant shark swam the Texas seas
Fossil find shows oldest known ‘supershark,’ about the size of a limo, prowled the ocean 300 million years ago.
- Climate
Climate change could shift New England’s fall foliage
Climate change could make for earlier or later fall color, depending on where you live in New England.
- Earth
4.1-billion-year-old crystal may hold earliest signs of life
A carbon impurity embedded inside an ancient zircon crystal suggests that life on Earth appeared before 4.1 billion years ago.
- Earth
4.1-billion-year-old crystal may hold earliest signs of life
New evidence suggests that life on Earth arose before 4.1 billion years ago, 300 million years earlier than previous estimates.
- Paleontology
New evidence weakens case against climate in woolly mammoths’ death
Hunters responsible for woolly mammoths’ extinction, suggests a chemical analysis of juveniles’ tusks.
