Category Archives: Environment

New Research Lowers Past Estimates of Sea-Level Rise

*Projections for the future still loom large*

The seas are creeping higher as the planet warms. But how high could they go?

Projections for the year 2100 range from inches to several feet, or even more.

The sub-tropical islands of Bermuda and the Bahamas are two seemingly unlikely places scientists have gone looking for answers. (more…)

Read More

Aerial Survey Reveals Exmoor’s Rare Peatlands as Never Seen Before

An unmanned aircraft has captured hundreds of images of Exmoor’s peatlands, revealing the condition of this rare environment as never seen before.

Flying 300 metres above the ground, the state-of-the art remote-controlled vehicle captured very detailed photographs of two five-hectare study sites.

The University of Exeter and South West Water will use the images to monitor the effectiveness of the planned restoration of these rare ecosystems. The research will investigate whether the restoration, due to take place later this year, will result in improved water storage in the blanket bogs, bringing benefits such as cost savings on water bills and improvements in river quality. (more…)

Read More

Rising Seas Put Millions of Americans at Risk for Flooding

New estimates suggest more U.S. land prone to flooding than previously thought.

About 3.7 million Americans are at risk for flooding as the sea level continues to rise in the coming century, according to a new study from a team that includes University of Arizona researchers.

Areas on the south Atlantic Seaboard and surrounding the Gulf of Mexico appear to be most prone to future flooding. In terms of numbers of people at risk, Florida is the most vulnerable, closely followed by Louisiana, California, New York and New Jersey. (more…)

Read More

A Fragrant New Biofuel

JBEI Researchers Develop a New Candidate for a Cleaner, Greener and Renewable Diesel Fuel

A class of chemical compounds best known today for fragrance and flavor may one day provide the clean, green and renewable fuel with which truck and auto drivers fill their tanks. Researchers at the U.S. Department of Energy’s Joint BioEnergy Institute (JBEI) have engineered Escherichia coli (E. coli) bacteria to generate significant quantities of methyl ketone compounds from glucose. In subsequent tests, these methyl ketones yielded high cetane numbers – a diesel fuel rating comparable to the octane number for gasoline – making them strong candidates for the production of advanced biofuels. (more…)

Read More

Study Links Past Changes in Monsoon to Major Shifts in Indian Civilizations

A fundamental shift in the Indian monsoon has occurred over the last few millennia, from a steady humid monsoon that favored lush vegetation to extended periods of drought, reports a new study led by researchers at the Woods Hole Oceanographic Institution (WHOI). The study has implications for our understanding of the monsoon’s response to climate change.

The Indian peninsula sustains over a billion people, yet it lies at the same latitude as the Sahara Desert. Without a monsoon, most of India would be dry and uninhabitable. The ability to predict the timing and amount of the next year’s monsoon is vital, yet even our knowledge of the monsoon’s past variability remains incomplete. (more…)

Read More

Fukushima Lesson: Prepare for Unanticipated Nuclear Accidents

ANN ARBOR, Mich.— A year after the crisis at Japan’s Fukushima Daiichi nuclear power plant, scientists and engineers remain largely in the dark when it comes to fundamental knowledge about how nuclear fuels behave under extreme conditions, according to a University of Michigan nuclear waste expert and his colleagues.

In a review article in this week’s edition of the journal Science, U-M’s Rodney Ewing and two colleagues call for an ambitious, long-term national research program to study how nuclear fuels behave under the extreme conditions present during core-melt events like those that occurred at Fukushima following the March 11, 2011, magnitude 9.0 earthquake and tsunami. (more…)

Read More

Hot Meets Cold at New Deep-Sea Ecosystem: “Hydrothermal Seep”

*Habitats overlap at Jaco Scar in depths off Costa Rica*

Decades ago, marine scientists made a startling discovery in the deep sea. They found environments known as hydrothermal vents, where hot water surges from the seafloor and life thrives without sunlight. (more…)

Read More

One Year Later: Japan Quake, Tsunami a Cautionary Tale for Pacific Northwest

Sunday marks the one-year anniversary of the great Tohoku earthquake and tsunami that devastated Japan, killing more than 16,000 people and causing billions of dollars in damage.

University of Washington scientists say the event has some important lessons for the Pacific Northwest – most notably, not that a similar event can happen here but that it WILL happen here, and that this region is still much less prepared than Japan was a year ago. (more…)

Read More