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extern

Map provides clues to natural protection of U.S. coastal communities

Devastating storms like Hurricanes Sandy and Katrina have left many coastal residents wondering how to protect life and property from future catastrophes. In a study published this week in Nature Climate Change, researchers suggest the best protection from storms and rising sea levels in the U.S. may entail a combination of engineering and conservation.

16 Jul 2013

Ancient Egyptian artifact is otherworldly

In ancient Egypt, iron was a rare and symbolic metal, but scientists and historians have long wondered about the prehistoric civilization’s knowledge of metallurgy. Now, one part of that mystery has been solved: The oldest-known iron artifacts were made from meteorites. The evidence comes in the form of iron beads from approximately 3300 B.C., more than 2,000 years before the Iron Age in Egypt, and before there is record of trade in iron goods with other civilizations.

03 Jul 2013

Hurricanes suppressed by air pollutants

Understanding how often devastating tropical storms like Superstorm Sandy occur, and how humans may play a role in their frequency, is a major goal among climate scientists. Now, a new study indicates that aerosols may suppress storm formation over the Atlantic. Thus, researchers say, more frequent storms at the end of the last century might have been an unintended side effect of cleaning up the air.

25 Jun 2013

Modern humans arrived in South Asia 25,000 years later than previously thought?

Figuring out when modern humans left Africa and migrated throughout the world is a complicated task. For example, some evidence suggests modern humans may have migrated out of Africa and into Asia as early as 120,000 years ago. Further evidence puts modern humans in India and other parts of South Asia prior to the super-eruption of Mount Toba in Sumatra, which took place 74,000 years ago.

13 Jun 2013

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