Earth

Rapid etching X-rayed

Tree resin the key evidence of current and historic insect invasions

A University of Alberta-led research team has discovered that insects that bore into trees as long ago 90 million years, or as recently as last summer, leave a calling card that's rich with information.

The information is contained in the resin found within trees and on their bark. Resin is produced in large quantities by a tree when it's under attack by insects.

Carbon capture and storage: Carbon dioxide pressure dissipates in underground reservoirs

The debate surrounding carbon capture and storage intensifies as scientists from the Earth Sciences Division at the Lawrence Berkeley National Laboratory (Berkeley Lab) examine the capacity for storing carbon dioxide underground, in a study published today in the new journal Greenhouse Gases: Science & Technology.

New technique could help solve mystery of vanishing bees

Ecologists have developed a better way of rearing bee larvae in the laboratory that could help discover why honey bee populations worldwide are declining. The technique, together with details of how statistics adapted from other areas of ecology can aid bee research, is published this week in the British Ecological Society's journal Methods in Ecology and Evolution.

Fish know to avoid the spear

Source:

When it comes to the environment, education affects our actions

The first set of findings from the survey are based on data from more than 22,000 individuals and show that people with degrees are 25% more likely, on average, than people with no education qualifications to adopt pro-environmental behaviours, at least in terms of paying more for environmentally-friendly products. However, they are less likely to turn off the TV overnight or to use public transport.

Fault-finding coral reefs can predict the site of coming earthquakes

In the wake of the devastating loss of life in Japan, the urgent question is where the next big earthquake will hit. To answer it, geologist Prof. Zvi Ben-Avraham and his doctoral student Gal Hartman of Tel Aviv University's Department of Physics and Planetary Sciences in the Raymond and Beverly Sackler Faculty of Exact Sciences are examining coral reefs and submarine canyons to detect earthquake fault zones.

Climate change hits home

Direct experience of extreme weather events increases concern about climate change and willingness to engage in energy-saving behaviour, according to a new research paper published in the first edition of the journal Nature Climate Change this week.

In particular, members of the British public are more prepared to take personal action and reduce their energy use when they perceive their local area has a greater vulnerability to flooding, according to the research by Cardiff and Nottingham Universities.

Study shows Native Americans modified American landscape years prior to arrival of Europeans

A new study by Baylor University geology researchers shows that Native Americans' land use nearly a century ago produced a widespread impact on the eastern North American landscape and floodplain development several hundred years prior to the arrival of major European settlements.

The study appears on-line in the journal Geology.

Climate change hits home

Direct experience of extreme weather events increases concern about climate change and willingness to engage in energy-saving behaviour, according to a new research paper published in the first edition of the journal Nature Climate Change this week.

In particular, members of the British public are more prepared to take personal action and reduce their energy use when they perceive their local area has a greater vulnerability to flooding, according to the research by Cardiff and Nottingham universities.

Is space like a chessboard?

Physicists at UCLA set out to design a better transistor and ended up discovering a new way to think about the structure of space.

Japanese tsunami underscores need for elder disaster preparedness

The oldest segment of Japan's population will likely be the hardest hit as a result of the recent earthquake and subsequent tsunami, based on data from previous catastrophic events. Approximately 23 percent of Japanese citizens currently are age 65 and above.

An icy gaze into the Big Bang

Hydrodynamic expansion

Enzyme can steer cells or possibly stop them in their tracks

March 17, 2011 — (BRONX, NY) — Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered that members of an enzyme family found in humans and throughout the plant and animal kingdoms play a crucial role in regulating cell motility. Their findings suggest an entirely new strategy for treating conditions ranging from diabetic ulcers to metastatic cancer.

Tiny 'on-chip detectors' count individual photons

Washington, D.C. (March 17, 2011) -- A team of researchers has integrated tiny detectors capable of counting individual photons on computer chips. These detectors, called "single-photon avalanche diodes (SPAD)," act like mini Geiger counters, producing a "tick" each time a photon is detected.

The researchers present their findings in Applied Physics Letters, a journal published by the American Institute of Physics.