Group items matching

in title, tags, annotations or url

Unprecedented levels of greenhouse gases in the Earth's atmosphere are disrupting normal patterns of glaciation, according to a study co-authored by a University of Florida researcher and published online Jan. 8 in Nature Geoscience.

No less than one third of a car's fuel consumption is spent in overcoming friction, and this friction loss has a direct impact on both fuel consumption and emissions. However, new technology can reduce friction by anything from 10% to 80% in various components of a car, according to a joint study by VTT Technical Research Centre of Finland and Argonne National Laboratory (ANL) in USA. It should thus be possible to reduce car's fuel consumption and emissions by 18% within the next 5 to 10 years and up to 61% within 15 to 25 years.

UCLA researchers have developed a new transparent solar cell that is an advance toward giving windows in homes and other buildings the ability to generate electricity while still allowing people to see outside. Their study appears in the journal ACS Nano.   The UCLA team describes a new kind of polymer solar cell (PSC) that produces energy by absorbing mainly infrared light, not visible light, making the cells nearly 70% transparent to the human eye. They made the device from a photoactive plastic that converts infrared light into an electrical current

Bird migration timing across North America has been affected by climate change, according to a study published Feb. 22 in the open access journal PLoS ONE.

Wild bees are important pollinators and numerous studies dealing with pollination of wild plants and crops underline their vital role in ecosystems functioning. While honey bees can be easily transported to various location when needed, wild bees' presence is dependent on the availability of high quality semi-natural habitats. Some crops, such as apples and cherries, and many wild flowers are more effectively pollinated by wild bees and other insects rather than managed honey bees.

A new study from the University of Reading highlights how climate change is having a detrimental effect on an endangered tropical bird population.

Transparency builds trust. The phrase has become so axiomatic in corporate relations that it's inching perilously close to cliché. And while virtues of openness and transparency are well-established in the corporate world, they're even more essential when applied to the operation of city governments. A recent Knight Foundation/Pew Research study shows how important, demonstrating that if citizens believe their city governments behave in a transparent manner and make information easily accessible, they tend to think more highly about their town and its civic institutions.

Parallels to our information overload problems in past times. Henry Jenkins is a leading scholar in comparative media studies who currently teaches at USC.

Research being carried out at Carlos III University of Madrid analyzes the key factors in climate change and the risks to public policies that it implies. This study approaches the issue from the perspective of Sociology, Economics and Law.

A team of scientists from the University of Sheffield and Bangor University have used a computer climate model to study how freshwater entering the oceans at the end of the penultimate Ice Age 140,000 years ago affected the parts of the ocean currents that control climate.

Each year, the cost of health care pushes some 39 million people back into poverty, according to a study published in the Lancet medical journal. Patients shoulder up to 80 percent of India's medical costs. Their share averages about $66 (3,000 rupees) annually per person - a crippling sum for the 800 million or so Indians living on less than $2 a day.

Natural gas is important in many sectors of the economy: for generating electricity, as a heat source for industry and buildings, and in chemical feedstock. Given the abundance of natural gas available through large global resources and the recent emergence of substantial unconventional supplies in the United States, worldwide usage of the fuel is likely to continue to grow considerably and contribute to significant reductions of greenhouse gas emissions for decades to come, according to a comprehensive, multidisciplinary study carried out over the last three years by MIT researchers.

Neala Kendall, a graduate student from the University of Washington in Seattle, after studying cannery data on sockeye salmon harvested from Bristol Bay in Alaska, has discovered that the length of the average sockeye caught there, has been dropping for the past half century.

Animals and plants may not be able to evolve their way out of the threat posed by climate change, according to a UC Davis study of a tiny seashore animal. The work was published today (June 8) in the journal Proceedings of the Royal Society B.

Any architect recognizes the Office of Metropolitan Architecture (OMA), lead by star architect Rem Koolhaas, as one of the most important and thought-provoking architectural firms in the world. The counterpart to OMA's architectural practice is AMO, a design and research studio that specifically focuses on areas beyond the traditional boundaries of architecture, such as media, politics, sociology, technology, fashion or graphic design. Remarkably, it seems AMO is getting more and more active in developing complex-scale, mass-medium data graphics. In February of this year, they presented the "Energy Report" for the WWF, a comprehensive study claiming that the world can be 100 percent reliant on renewable energy by 2050.

As a kid growing up near the space program in Huntsville, Ala., reading as much science fiction as he could get his hands on, Kasting had space exploration on his mind all the time. It influenced who he is today as well as the research he's most interested in conducting. By studying early Earth's atmosphere and the origins of oxygen in it, Kasting has become one of the foremost experts on planetary habitable zones. In his book, "How to Find a Habitable Planet," Kasting explains how his research with NASA may be able to detect worlds outside of our solar system that are suitable for sustaining life.

Carbon dioxide remains the undisputed king of recent climate change, but other greenhouse gases measurably contribute to the problem. A new study, conducted by NOAA scientists and published online today in Nature, shows that cutting emissions of those other gases could slow changes in climate that are expected in the future.

The demise of the world's forests some 250 million years ago likely was accelerated by aggressive tree-killing fungi triggered by global climate change, according to a new study by a University of California, Berkeley, scientist and her Dutch and British colleagues.

Changing human activities coupled with a dynamic environment over the past few centuries have caused fluctuating periods of decline and recovery of corals reefs in the Hawaiian Islands, according to a study sponsored in part by the Institute for Ocean Conservation Science at Stony Brook University. Using the reefs and island societies as a model social-ecological system, a team of scientists reconstructed 700 years of human-environment interactions in two different regions of the Hawaiian archipelago to identify the key factors that contributed to degradation or recovery of coral reefs.

Eutrophication harms the environment in many ways. Unexpectedly, nitrogen fertilizer may also be positive for the environment. And even acidic soils, promoting the destruction of forests, can have a positive effect. Researchers from the Biogeochemistry Department at the Max Planck Institute for Chemistry in Mainz found out that nitrogen fertilizer indirectly strengthens the self-cleaning capacity of the atmosphere. Their study shows that nitrous acid is formed in fertilized soil and released to the atmosphere, whereby the amount increases with increasing soil acidity. In the air, nitrous acid leads to the formation of hydroxyl radicals oxidizing pollutants that then can be washed out. Previously, this nitrogen-effect has not been taken into account by geoscientists. The gap has now been closed by the Max Planck researchers.