Earth

New research lowers past estimates of sea-level rise

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.

The cliffs and ancient reefs on Bermuda and the Bahamas have lured fossil-hunters for decades. The land on the Bahamas, for example, has a foundation of fossil coral; the stone is derived from the disintegration of age-old coral reefs and seashells.

Survival of the fittest -- ESF hosts session on the challenges of life in extreme environments

Have you ever wondered how life is sustained in environments like deserts, deep seas or the polar regions? How do organisms adapt and thrive in such harsh conditions, and what challenges do they face as a result of human activities and climate change, especially climate "extremization"? Shedding light on some of these issues is the objective of the European Science Foundation's (ESF) session on 27 March at Planet Under Pressure 2012.

Straintronics: Engineers create piezoelectric graphene

In what became known as the 'Scotch tape technique," researchers first extracted graphene with a piece of adhesive in 2004. Graphene is a single layer of carbon atoms arranged in a honeycomb, hexagonal pattern. It looks like chicken wire.

Lyme disease surge predicted for the northeastern US

The northeastern U.S. should prepare for a surge in Lyme disease this spring. And we can blame fluctuations in acorns and mouse populations, not the mild winter. So reports Dr. Richard S. Ostfeld, a disease ecologist at the Cary Institute of Ecosystem Studies in Millbrook, NY.

New dataset provides 40-year record of carbon dioxide accumulation in the surface ocean

The most comprehensive dataset of surface water carbon dioxide (CO2) measurements for the world's oceans and coastal seas is launched today by an international team of scientists led by the University of East Anglia (UEA).

The Surface Ocean CO2 Atlas (SOCAT) comprises 6.3 million global observations made from research vessels, commercial ships and moorings around the world since 1968. The dataset documents the changes in ocean carbon similar to the Mauna Loa record – or 'Keeling curve' - showing the rise in atmospheric CO2 over time.

First step taken to image ultra-fast movements in chemical reactions

A team of international researchers have fired ultra-fast shots of light at oxygen, nitrogen and carbon monoxide molecules as part of a development aimed at mapping the astonishingly quick movements of atoms within molecules, as well as the charges that surround them.

Children in low-income neighborhood with special walking/bike trail exercised more

Children living in a neighborhood designed with a special bike trail were three times as likely as those in a traditional neighborhood to engage in vigorous physical activity, according to new research presented at the American Heart Association's Epidemiology and Prevention/Nutrition, Physical Activity and Metabolism 2012 Scientific Sessions.

Disabling cancer cells' defenses against radiation

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Giant squids' giant eyes: The better to see hungry whales with

It's no surprise that giant and colossal squid are big, but it's their eyes that are the real standouts when it comes to size, with diameters measuring two or three times that of any other animal. Now, researchers reporting online on March 15 in Current Biology, a Cell Press publication, have used complex computations to explain those massive peepers. Giant squids' 10-inch eyes allow them to see very large and hungry sperm whales from a distance in the pitch darkness of their deep-sea home.

Researchers create more efficient hydrogen fuel cells

Hydrogen fuel cells, like those found in some "green" vehicles, have a lot of promise as an alternative fuel source, but making them practical on a large scale requires them to be more efficient and cost effective.

A research team from the University of Central Florida may have found a way around both hurdles.

Surprising pine beetle breeding habits help explain increasing tree damage, says CU study

Long thought to produce only one generation of tree-killing offspring annually, some populations of mountain pine beetles now produce two generations per year, dramatically increasing the potential for the bugs to kill lodgepole and ponderosa pine trees, University of Colorado Boulder researchers have found.

New study lowers estimate of ancient sea-level rise

The seas are creeping higher as the planet warms. But how high will they go? Projections for the year 2100 range from inches to several feet, or more. The sub-tropical islands of Bermuda and the Bahamas contain important sites where researchers have gone looking for answers; by pinpointing where shorelines stood on cliffs and reefs there during an extremely warm period 400,000 years ago, they hope to narrow the range of global sea-level projections for the future.

Molecular graphene heralds new era of 'designer electrons'

Menlo Park, Calif. — Researchers from Stanford University and the U.S. Department of Energy's SLAC National Accelerator Laboratory have created the first-ever system of "designer electrons" – exotic variants of ordinary electrons with tunable properties that may ultimately lead to new types of materials and devices.

Researchers send 'wireless' message using elusive particles

A group of scientists led by researchers from the University of Rochester and North Carolina State University have for the first time sent a message using a beam of neutrinos – nearly massless particles that travel at almost the speed of light. The message was sent through 240 meters of stone and said simply, "Neutrino."

Fielding questions about climate change

Montreal -- Canada defines itself as a nation that stretches from coast to coast to coast. But can we keep those coasts healthy in the face of climate change? Yves Gélinas, associate professor in Concordia's Department of Chemistry and Biochemistry, has found the solution in a surprising element: iron.