Features Archive - Page 5 of 7 - State of the Planet

Key Talks from a Global Science Summit

Earth Institute researchers spoke in 2012 at the annual meeting of the American Association for the Advancement of Science, a major global gathering of researchers from many disciplines. They covered topics from climate and human evolution to food security and tropical deforestation. Science editor Kevin Krajick covered the meeting from Vancouver, British Columbia.

American Geophysical Union Fall Meeting

The fall meeting of the American Geophysical Union is the world’s largest gathering of earth and space scientists. Scores of researchers from the Earth Institute give presentations.

Sea Ice Blooms in the Far North

Location: Bering Sea, off Kodiak, Alaska Team: Beth Stauffer, Kali McKee Purpose: Arctic Sea Ice and Plankton Research Start Date: April 26, 2012 to May 9, 2012 Tiny plants beneath northern sea ice feed all marine life. But warming temperatures and shrinking ice cover are changing the timing of spring phytoplankton blooms and causing some… read more

Future El Niño

Location: Line Islands, south of Hawaii Team: Co-led by Lamont climate scientist Pratigya Polissar, Lamont graduate student Allison Jacobel Purpose: Climate Research Start Date: May 1, 2012 The El Niño weather pattern in the tropical Pacific influences weather across the planet. As the planet warms, it is unclear if El Niño will grow stronger, bringing… read more

The Broadleaf Papers

Trees have stories to tell, their annual growth rings cataloging changes in the environment, including climate. Many tree-ring scientists focus on conifers, but Neil Pederson, a scientist at Lamont-Doherty Earth Observatory, believes that the less-studied broadleaf trees in temperate forests, such as magnolia, tulip-poplar, maple and birch, have much to teach us.

Earth’s Plates, Deep Under the Sea

From a ship in remote Pacific waters, a team of researchers is plumbing the mysteries of what drives and defines the giant tectonic plates that make up the ocean floors and continents. Join Lamont-Doherty Earth Observatory seismologist James Gaherty aboard the R/V Marcus G. Langseth, as he and colleagues peer up to 400 kilometers beneath… read more

Imaging the Sources of Great Alaskan Earthquakes

Researcher: Donna Shillington Student Blog: Team Diebold goes to Sea A major tectonic boundary on the seafloor off Alaska has produced fatal earthquakes and tsunamis similar to the recent one in Japan. In 1964, the second largest quake ever recorded happened here, and other parts of the fault may be building energy for another event…. read more

Vanishing Tropical Glaciers

Location: Southern Peruvian Andes, PeruTeam: Gordon Bromley, Kurt Rademaker, Matt Hegland and Gisela Winckler Purpose: Sampling of glacier depositsStart Date: June 19, 2011 From the Himalayas to the Alps and Rockies, mountain glaciers are rapidly melting. A sign of a warming climate, their retreat may also threaten hydropower and water supplies for cities below. To… read more

Tracking Ocean Changes in the Arctic Switchyard

Date: April 28-May 18, 2012Team: Bill Smethie, Ronny Friedrich, Dale Chayes, Richard Perry Arctic ice is declining rapidly—a trend with enormous implications for global weather and climate. Freshwater pours into the Arctic Ocean from the ice sheets and glaciers, and sea ice over the ocean itself is declining. Ocean Channels and currents there act as… read more

Geohazards in Bangladesh

Date: Started 2011 Project Lead: Michael S. Steckler Project Website: BanglaPIRE Earthquakes, floods, sea-level rise and sudden shifts in river courses threaten many of the 150 million Bangladeshis living in the low-lying Brahmaputra River delta. Scientists from Lamont-Doherty, Dhaka University and other institutions have begun a five-year project to understand the hazards and the possible… read more