Sci/tech

Researchers develop efficient solar power devices
July 11, 2008 08:42 AM - Reuters

Using sheets of glass covered with organic dyes, scientists have devised an efficient and practical solar power device that they believe can help make this clean, renewable energy source more affordable.

Carbon Sciences: Turning Carbon Emissions into "GreenCarbon"
July 10, 2008 09:49 AM - , Triple Pundit

A small startup based in Santa Barbara, California is testing an alternative to carbon sequestration that, in a sense (perhaps more poetic than scientific), turns the second law of thermodynamics – entropy – on its head by taking waste CO2 and tailings from mining operations and turning the mix into materials of a “higher order” for use in a variety of industrial, agricultural, and environmental applications.

Game theory could save the world
July 10, 2008 09:40 AM - , Environmental Health News

New hope that people around the world can work together to combat global warming has come from a new theoretical study.

Some Plants Can Adapt To Widespread Climate Change
July 9, 2008 09:35 AM - Syracuse University.

While many plant species move to a new location or go extinct as a result of climate change, grasslands clinging to a steep, rocky dale-side in Northern England seem to defy the odds and adapt to long-term changes in temperature and rainfall, according to a new study by scientists from Syracuse University and the University of Sheffield (United Kingdom) published online in the July 7 issue of the Early Edition of the Proceedings of the National Academy of Sciences (PNAS).

Cow burps help Argentines study climate change
July 9, 2008 09:28 AM - Reuters

Argentine scientists are taking a novel approach to studying global warming -- strapping plastic tanks to the backs of cows to collect their burps. Researchers say the slow digestive system of cows makes them a producer of methane, a potent greenhouse gas that gets far less public attention than carbon dioxide in efforts to fight global warming.

Global warming will push Russia to destruction
July 8, 2008 11:02 AM - Reuters

Global warming will sow destruction across Russia and ex-Soviet states, a report said on Tuesday after the world's richest countries issued targets on harmful emissions that environmentalists criticized as too soft. The 52-page report -- written by green group WWF and British charity Oxfam -- described a grim picture of social, ecological and economic collapse in the world's biggest country and its former empire unless the world took urgent action.

Rare hydrogen producing microorganism may help unlock tomorrow's hydrogen economy
July 8, 2008 10:10 AM - Virginia Tech

An ancient organism from the pit of a collapsed volcano may hold the key to tomorrow's hydrogen economy. Scientists from across the world have formed a team to unlock the process refined by a billions-year old archaea. The U.S. Department of Energy Joint Genome Institute will expedite the research by sequencing the hydrogen-producing organism for comparative genomics.

Nature Reserves Attract Humans, But At A Cost To Biodiversity
July 7, 2008 10:21 AM - University of California - Berkeley.

Rather than suppressing local communities in developing nations, nature reserves attract human settlement, according to a new study by researchers at the University of California, Berkeley. In an analysis of 306 rural protected areas in 45 countries in Africa and Latin America, the researchers found that, on average, the rate of human population growth along the borders of protected areas was nearly twice that of neighboring rural areas.

Wasps use parasitic mites as baby bodyguards
July 7, 2008 09:44 AM - New Scientist

Parents will go a long way to protect their children, and one type of wasp goes as far as offering a home to a parasitic mite that helps fight off intruders at its nest. After breeding, potter wasps (Allodynerus delphinalis) build a nest and lay eggs inside cavities that contain food and are sealed with mud and saliva. But the insect's offspring are threatened by parasitic wasps that try to invade the nest and lay their eggs inside the cavities. This kills the baby potter wasp in the process.

Surprisingly rapid changes in the Earth's core discovered
July 7, 2008 09:40 AM - Helmholtz Association of German Research Centres

In a recent paper published in Nature Geoscience (*), the geophysicist Mioara MANDEA from the GFZ German Research Centre for Geosciences, Potsdam and her Danish colleague Nils OLSEN from the National Space Institute/DTU Copenhagen, have shown that motions in the fluid in the Earth’s core are changing surprisingly fast, and that this, in turn, effects the magnetic field of our Planet.

First | Previous | 337 | 338 | 339 | 340 | 341 | Next | Last