All Stories by Sid Perkins
- Earth
White House releases report on climate change
A new White House report addresses current and projected impacts of climate change across the United States.
- Planetary Science
Solar system’s future could be bumpy
A new study assesses the chances that two planets will collide or a planet will plunge into the sun in the next 5 billion years.
- Earth
When the Great Lakes were lower
New archaeological evidence shows signs of prehistoric hunting and other human activities on now-submerged portions of Lake Huron.
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The iron record of Earth’s oxygen
Scientists are decoding the geological secrets of banded iron formations.
- Earth
Unexplained atmospheric chemistry detected
A field study in China reveals an unusually high and unexplained production of hydroxyl radicals.
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Alpine Antarctica, before the ice
A new survey may have unveiled the birthplace of the world’s largest ice sheet.
- Climate
Cultivation changed monsoon in Asia
The loss of forests in India, China during the 1700s led to a decline in monsoon precipitation.
- Earth
Phytoliths as climate clues
Tiny silica plant structures from soil could track temperature changes.
- Earth
Bricks, mortar and magnetism
Medieval French castle, churches yield new data about Earth’s changing magnetic field.
- Earth
A more organic meteorite
Some meteorites may contain a higher concentration of organic chemicals than previously thought.
- Life
Trees of stone tell tropical tale
Peruvian petrified forest offers insight into low-latitude conditions of millions of years ago
- Life
Life on Earth took a licking, kept on ticking
Earth's early organisms may not have had to restart after a long spell of asteroid impacts.
