Featured series 
Tag: Department of Earth and Planetary Sciences
-
Science & Tech
Looking for the meaning of life at the bottom of the sea
Charles Langmuir, Harvard professor of geochemistry, loves going to sea. “It’s tremendously stimulating, wonderful, exciting, and eye-opening,” he says enthusiastically. “Every time I’ve gone since 1984, I’ve seen things I’ve never seen before. Sometimes, they’re things nobody has ever seen before. Teams of people keep the work going seven days a week, 24 hours a…
-
Science & Tech
McElroy says it’s time to stop seeing global warming as political issue
Michael B. McElroy, Gilbert Butler Professor of Environmental Studies and director of Harvard’s Center for the Environment, is among the scientists who since the 1970s have been using paleoclimatic data to chart changes in the earth’s atmosphere. To obtain these data, researchers drill several kilometers down into polar ice sheets and extract gases from the…
-
Campus & Community
Earth’s new center
The outer core is liquid, the inner core is solid. That’s the way Earth has been depicted in textbooks for the past 66 years. But the work of Adam Dziewonski, Frank B. Baird Jr. Professor of Science, and graduate student Miaki Ishii shows that this picture doesn’t get to the bottom of things. Engulfed in…
-
Science & Tech
New earthquake mapping system could save lives
“The earthquake-hazard maps currently in use are based on the premise that the closer a building is to a large fault, the better designed it should be,” says Harvard earthquake expert John Shaw. “But what these new, comprehensive 3-D models we’ve developed tell us is that this basic rule of proximity doesn’t always work.” A…
-
Science & Tech
Atmospheric chemists fly high and low for novel carbon dioxide measurements
Political leaders throughout the world have taken notice of the increasing levels of carbon in the atmosphere and have begun negotiations on how to mitigate “greenhouse” gases through accords such as the Kyoto Protocol. One major problem with the Kyoto Protocol, which the United States rejected, was how to monitor compliance. Currently there is no…
-
Science & Tech
Polar bear research shows global warming is real
Harvard Professor James McCarthy was among a handful of top scientists who coordinated a remarkable report by the world scientific community in 2001 that said global warming is real, it’s here, and it’s going to be worse than we thought. “We already see effects that [indicate] the change in climate has occurred,” said McCarthy, who…
-
Science & Tech
What killed the dinosaurs?
Charles Marshall’s childhood passion led him to a career in paleontology, trying to understand the interplay between inheritance, environment, and catastrophe in directing evolution. Marshall’s work attracted media attention in 1996. He and University of Washington geologist Peter Ward concluded there may have been other causes than just the well-publicized comet or asteroid impact responsible…
-
Science & Tech
El Nino found to be 124,000 years old
Records preserved in corals from Indonesia reveal that El Niño was causing severe weather even before the last ice age began, when the climate apparently was like it was for most of the 20th century. “No question about it; there were El Niños that long ago,” says Daniel Schrag, professor of earth and planetary sciences.…
-
Science & Tech
Discovering a new earthquake fault under Los Angeles
“Los Angeles is caught in a vise,” says John Shaw, an associate professor of structural and economic geology at Harvard who was half of a research team that discovered a large, active crack in the earth, capable of causing destructive earthquakes, under Los Angeles. The researchers announced their discovery in March 1999. The crack, or…