Scientists find evidence of ancient copper mining in polluted lake sediments from Isle Royale National Park.
history
Posted inFeatures
Elders Recall an Earlier Tsunami on Indian Ocean Shores
Legacies of the 2004 Indian Ocean tsunami include recent interviews with lucid eyewitnesses to an obscure disaster in 1945. The accounts attest to coastal hazards in Oman, Iran, Pakistan, and India.
Posted inResearch Spotlights
A Dearth of Hurricanes Cannot Explain Maya Collapse
Mud layers in a stalagmite from a cave on the Yucatán Peninsula show hurricane activity was steady or elevated throughout the Maya collapse.
Posted inResearch Spotlights
Changing Crustal Velocities Preceded 2011 Tohoku-oki Quake
Researchers examined the crustal deformation associated with earthquakes that occurred before the 2011 Tohoku-oki earthquake.
Posted inResearch Spotlights
Changes in Earth’s Radiation Balance Between 1985 and 2012
A comparison of shortwave and longwave radiation in the atmosphere shows Earth’s heating rate is increasing even though temperatures are rising at a slower rate now than 30 years ago.
Posted inNews
Centenary of the Discovery of Earth’s Magnetic Field Reversals
A monument was erected to commemorate the centenary of Bernard Brunhes’s discovery of Earth’s magnetic field reversals.
Posted inResearch Spotlights
History of Storm Surge in Florida Strongly Underestimated
Florida’s sediment record reveals surprising new information about the frequency of large hurricanes hitting the state.
Posted inFeatures
New Indian Ocean Program Builds on a Scientific Legacy
From 1957 to 1965, 46 ships under 14 flags collected data for the International Indian Ocean Expedition. Now, 50 years later, scientists are planning a fresh effort to study the Indian Ocean.
Posted inScience Updates
A Rapid Response Study of the Hercules Gas Well Blowout
Following the 23 July 2013 blowout of a gas production in the Gulf of Mexico owned by Hercules Offshore, scientists established a rapid response study to investigate the environmental effects.
Posted inResearch Spotlights
Large Volcanic Eruptions Cause Drought in Eastern China
In a study with implications for geoengineering, large Northern Hemispheric volcanic eruptions are found to cause strong droughts in much of eastern China.