Earth News, Earth Science, Energy Technology, Environment News

August 07, 2013

Researchers dismantle bacteria's war machinery
Lausanne, Switzerland (SPX) Aug 07, 2013
This is a veritable mechanics of aggression on the nanoscale. Certain bacteria, including Staphylococcus aureus, have the ability to deploy tiny darts. This biological weapon kills the host cell by piercing the membrane. Researchers at EPFL have dismantled, piece by piece, this intriguing little machine and found an assembly of proteins that, in unfolding at the right time, takes the form of a spur. Published in Nature Chemical Biology, this discovery offers new insight into the fight against path ... read more

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Discovery could lead to end of sunburn pain The painful, red skin that comes from too much time in the sun is caused by a molecule abundant in the skin's epidermis, a new study shows. Blocking this molecule, called TRPV4, greatly protec ... more		Cool heads likely won't prevail in a hotter, wetter world Should climate change trigger the upsurge in heat and rainfall that scientists predict, people may face a threat just as perilous and volatile as extreme weather - each other. Researchers from ... more		Climate change occurring 10 times faster than at any time in past 65 million years The planet is undergoing one of the largest changes in climate since the dinosaurs went extinct. But what might be even more troubling for humans, plants and animals is the speed of the change. Stan ... more
				Scientists uncover secrets of starfish's bizarre feeding mechanism Scientists have identified a molecule that enables starfish to carry out one of the most remarkable forms of feeding in the natural world. A starfish feeds by first extending its stomach out o ... more		New Insight on Vulnerability of Public-Supply Wells to Contamination Key factors have been identified that help determine the vulnerability of public-supply wells to contamination. A new USGS report describes these factors, providing insight into which contaminants i ... more

Ozone-protection treaty had climate benefits The global treaty that headed off destruction of earth's protective ozone layer has also prevented major disruption of global rainfall patterns, even though that was not a motivation for the treaty, ... more		As climate, disease links become clearer, study highlights need to forecast future shifts Climate change is affecting the spread of infectious diseases worldwide, according to an international team of leading disease ecologists, with serious impacts to human health and biodiversity conse ... more		New method boosts efficiency and longevity of organic solar cells Nuclear fusion could one day be viable - but major challenges remain Revealing new insights into single-atom metal alloy properties		Global investigation reveals true scale of ocean warming Warming oceans are causing marine species to change breeding times and shift homes with expected substantial consequences for the broader marine landscape, according to a new global study. The ... more
				Future warming: Issues of magnitude and pace Researchers reviewed the likelihood of continued changes to the terrestrial climate, including an analysis of a collection of 27 climate models. If emissions of heat-trapping gases continue along th ... more		Seafood Menus Reflect Long-term Ocean Changes The colorful restaurant menus that thousands of tourists bring home as souvenirs from Hawaii hold more than happy memories of island vacations; they contain valuable data that are helping a trio of ... more

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Climate strongly affects human conflict and violence worldwide Shifts in climate are strongly linked to human violence around the world, with even relatively minor departures from normal temperature or rainfall substantially increasing the risk of conflict in a ... more		Looking to the past to predict the future of climate change Climate changes how species interact with one another-and not just today. Scientists are studying trends from fossil records to understand how climate change impacted the world in the ancient past a ... more		US announces new restrictions on AI chip exports North Korea fires short-range ballistic missiles into sea Iran, European powers hold 'constructive' nuclear talks		Diamonds and Gold Let Scientists Measure Temperate Inside Living Cells How do you take the temperature of a cell? The familiar thermometer from a doctor's office is slightly too big considering the average human skin cell is only 30 millionths of a meter wide. Bu ... more
				Scientists discover key to easing aquaculture's reliance on wild-caught fish For the first time scientists have been able to develop a completely vegetarian diet that works for marine fish raised in aquaculture, the key to making aquaculture a sustainable industry as the wor ... more		Veolia says profits down to a trickle, shares sparkle French utilities group Veolia Environnement reported Monday a six-month profits slump owing to provisions and warned that its activities in China were slowing, but its shares climbed as it held onto targets to cut costs and debt. ... more

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Deep sea mining to transform Cook Islands' economy?

Veolia says profits down to a trickle, shares sparkle

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Robots Strike Fear in the Hearts of Fish

Decoding material fluxes in the tropical ocean

Chinese distrust mounts after Fonterra milk scare

'Evolution will punish you if you're selfish and mean'

3D Sim Tech Helps Train Surgical Residents

New Zealand PM accuses milk scare firm of 'staggering' delay

Pakistan warns of more rain after flood deaths hit 45

Sri Lanka steps up security as protest toll rises

New Zealand's 'clean' green' image hurt by milk scare

Wall Street Journal's Chinese version blocked in China

Veolia says profits down to a trickle, shares sparkle

Shrinking glaciers won't affect South Asia water availability: study

Wasps being used to fight tree disease

Roots breakthrough for drought-resistant rice

Polish city braces for more farmers' protests over low prices

Turkey court to deliver ruling in high-profile coup trial

Egypt army chief met Islamists over crisis: spokesman

CU-Boulder team develops new water splitting technique that could produce hydrogen fuel

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