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.
Earth
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.
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.
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."
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.
Freezing eggs or ovarian tissue for the sole purpose of delaying childbearing for social reasons may prove too costly for society, according to a recent analysis by a University of Illinois at Chicago researcher.
Fertility preservation -- freezing eggs or ovarian tissue -- was originally intended for women undergoing medical treatments that could affect their fertility.
WASHINGTON, March 14, 2012 — The latest episode in the American Chemical Society's (ACS) award-winning "Global Challenges/Chemistry Solutions" podcast series describes the development of a new test that could help track down and prosecute terrorists.
Nearly four million Americans, occupying a combined area larger than the state of Maryland, find themselves at risk of severe flooding as sea levels rise in the coming century, new research suggests.
A new study, published today, 14 March, in IOP Publishing's journal Environmental Research Letters, asserts that around 32,000 km2 of US land lies within one vertical meter of the high tide line, encompassing 2.1 million housing units where 3.9 million people live.
DURHAM, N.H. – Researchers from the University of New Hampshire have found that many African farmers inaccurately perceive changes in climate and rainfall when compared with scientific data, highlighting the need for better climate information to assist them to improve farming practices.
China's groundwater irrigation system is responsible for polluting the atmosphere with more than 30 million tonnes of CO2 per year – according to research from the University of East Anglia.
Groundwater used for crop irrigation in China has grown from 10 billion cubic metres in 1950 to more than 100 billion today.
A research paper, published today in Environmental Research Letters, estimates that the pumping systems which support this immense irrigation network annually produce 33.1 MtCO2e (33.1 mega tonnes of carbon dioxide equivalent).
There is better evidence for the effectiveness of drug-based approaches for relieving labour pains than non-drug approaches. These are the findings of an all-encompassing publishing in The Cochrane Library, which draws together results from a number of previous reviews on the subject.
These days graphene is the rock star of materials science, but it has an Achilles heel: It is exceptionally sensitive to its electrical environment.
STORRS, Conn. – The American public's growing skepticism in recent years about the existence of man-made global warming is rooted in apprehension about the troubled economy, a University of Connecticut study suggests.
Lyle Scruggs, associate professor of political science in UConn's College of Liberal Arts and Sciences, says the public's belief in climate change dropped significantly as the economy dipped and unemployment climbed in the late 2000s.
Do a Google image search for "Greece." Before you find pictures of the Parthenon or Acropolis, you'll see several beautiful photos of Santorini, the picturesque island in the Aegean Sea. The British Broadcasting Company named it the world's best island in 2011. Santorini is a tourist magnet, famous for its breathtaking, cliff side views and sunsets.
"Bows and flows of angel hair, and ice cream castles in the air;" we've looked at clouds that way. But the interface between clouds and clear air isn't as well-defined as these imaginative shapes might lead us to believe. Detecting that hazy line can help scientists to better understand the processes that lead to cloud formation, which is important for good weather forecasts and climate modeling.