7,844 results
7,844 results for: Geology
- Life
Fossil moth reveals colorful hue
Paleontologists deduce how ridges on the creature’s wings would have reflected light.
- Humans
Insurance payouts point to climate change
Natural disasters in 2011 exerted the costliest toll in history — a whopping $380 billion worth of losses from earthquakes, floods, tornadoes, hurricanes, wildfires, tsunamis and more. Only a third of those costs were covered by insurance. And the tally ignores completely any expenses associated with sickness or injuries triggered by the disasters. And except for quake-related events, climate change appears to have played a role in the growing cost of disasters, insurers said.
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Venus Unveiled
Spacecraft finds Earthy features on sister planet.
- Paleontology
Oxygen blew up ancient amoebas
Single-celled creatures' size spiked as oxygen levels rose.
- Humans
Columbus’ arrival linked to carbon dioxide drop
The depopulation of the Americas due to introduced European diseases may have spurred Europe's Little Ice Age.
- Paleontology
Acidifying oceans helped fuel mass extinction
The great die-off 250 million years ago could trace in part to hostile water conditions, a modeling study suggests.
- Life
Biology’s big bang had a long fuse
The fossil record’s earliest troves of animal life are the result of more than 200 million years of evolution.
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Letters
Earthquake rumblings I reviewed this very interesting story (“Seismologists in a rumble over quake clusters,” SN: 5/7/11, p. 5) this morning, and it occurred to me that the connection between all of these very severe earthquakes might possibly be the change in weight distribution throughout the planet, resulting from temperature increases due to climate change […]
- Science & Society
Alexandra Witze, Earth in action
Loss of eyes in the sky hurts science on the ground.
- Ecosystems
Groundwater dropping globally
Nine-year record collected from orbit finds supply dropping mostly due to agriculture.
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New Takes on Historic Quakes
Two centuries on, scientists revisit the magnitudes of New Madrid’s biggest rumbles.
- Earth
Magnitude 5.8 earthquake hits Virginia
The region's largest tremor in recent history hit northwest of Richmond, felt over much of the East Coast.
