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WSU researchers determine key improvement for fuel cells

Washington State University researchers have determined a key step in improving solid oxide fuel cells (SOFCs), a promising clean energy technology that has struggled to gain wide acceptance in the marketplace.

The researchers determined a way to improve one of the primary failure points for the fuel cell, overcoming key issues that have hindered its acceptance. Their work is featured on the cover of the latest issue of Journal of Physical Chemistry C.

Fuel cells offer a clean and highly efficient way to convert the chemical energy in fuels directly into electrical energy. They are similar to batteries in that they have an anode, cathode and electrolyte and create electricity, but they use fuel to create a continuous flow of electricity.

Fuel cells can be about four times more efficient than a combustion engine because they are based on electrochemical reactions, but researchers continue to struggle with making them cheaply and efficiently enough to compete with traditional power generation sources.

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New discoveries about photosynthesis may lead to solar cells of the future

For the first time, researchers have successfully measured in detail the flow of solar energy, in and between different parts of a photosynthetic organism. The result is a first step in research that could ultimately contribute to the development of technologies that use solar energy far more efficiently than what is currently possible.

For about 80 years, researchers have known that photochemical reactions inside an organism do not occur in the same place as where it absorbs sunlight. What has not been known, however, is how and along what routes the solar energy is transported into the photosynthetic organism -- until now.

"Not even the best solar cells that we as humans are capable of producing can be compared to what nature performs in the first stages of energy conversion. That is why new knowledge about photosynthesis will become useful for the development of future solar technologies", says Donatas Zigmantas, Faculty of Science at Lund University, Sweden.

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Glacial retreats linked to oceanic warming

A new study has found for the first time that ocean warming is the primary cause of retreat of glaciers on the Antarctic Peninsula. The Peninsula is one of the largest current contributors to sea-level rise and this new finding will enable researchers to make better predictions of ice loss from this region.

The research, by scientists at Swansea University and British Antarctic Survey, is published in the journal Science this week (15 July). The study reports that glaciers flowing to the coast on the western side of the Peninsula show a distinct spatial correlation with ocean temperature patterns, with those in the south retreating rapidly but those in the north showing little change. Some 90% of the 674 glaciers in this region have retreated since records began in the 1940s.

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Calcification: Does it pay off in the future ocean?

An international research team has calculated the costs and benefits of calcification for phytoplankton and the impact of climate change on their important role in the world's oceans.

Single-celled phytoplankton play an important role in marine biogeochemical cycling, in marine food webs and in the global climate system. Coccolithophores are a particular group that cover themselves with calcium carbonate shields, known as coccoliths. Some wrap themselves in an impenetrable coat of coccoliths, some make coccoliths in the form of sharp spikes, some use them as parasols against the sun and some form funnel-shaped light collectors.

But this requires a lot of energy -- and the price for the artful armour could rise further due to global change. With the help of a new model, the researchers analysed the energetic costs and benefits of calcification. The results, published in the current issue of the journal Science Advances, suggest that the ecological niche for calcifying algae will become narrower in the future.

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Ptarmigan in Colorado have varied reproduction, not likely linked to warming trends

Animals that live at high elevations are often assumed to be at risk for extinction as habitats warm and change. But a new study led by Colorado State University researchers found that ptarmigan, which live in cold ecosystems, are not strongly affected by fluctuations in seasonal weather at two populations studied in Colorado.

The results, published July 15 in the journal PLOS ONE, are surprising, given the general perception of alpine animal populations as vulnerable to recent climate warming, study authors said.

Ptarmigan are grouse that live in cold ecosystems, such as alpine and tundra habitats, said Greg Wann, Ph.D. candidate in CSU's Graduate Degree Program in Ecology and a member of the Natural Resource Ecology Laboratory.

The birds are well-known for changing colors seasonally. In late spring and summer, ptarmigan are brown, and in the fall, they molt into a white plumage to match the surrounding snow. The white-tailed ptarmigan is the smallest species of this type of grouse and is endemic to North America. It is the only ptarmigan that exists in Colorado.

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Solar on the best UK sites is competitive with cheap coal

Last week a massive 350-hectare open cast coal mine at Druridge Bay won planning permission. This got Chris Goodall wondering: what if the land was turned into a solar farm instead? His surprise discovery: solar power on England's south coast already costs no more than coal - and it's only getting cheaper.

A week ago Northumberland council gave planning permission to a new open-cast coal mine at Druridge on the coastline just north of Newcastle.

About 3 million tonnes of coal will be extracted over a five to seven-year period from an area of around 350 hectares, including storage space. (350 hectares is about 1.4 square miles)

The environmental objections to the plan are striking. For example, the owners predict about 170 HGV movements a day along local roads during the whole lifetime of the project. The landscape impact is also severe although the developers say they will ensure that the local sandy beaches are unaffected.

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What Do You Know About New York Whales?

In case you thought wildlife in New York was pretty much limited to the squirrels and pigeons of Central Park, Howard Rosenbaum has news for you.

“In less distance out to sea than the average New Yorker’s commute home, there is likely a whale singing at this very moment,” says Rosenbaum, director of the Ocean Giants program at the New York Aquarium in Coney Island, Brooklyn.

7 Species Of Whales Spotted In New York Waters

Humpback whales (seen above) are regularly seen in the waters off the Big Apple, while fin whales inhabit the waters around the eastern tip of Long Island. Five other species, the critically endangered North Atlantic right whale and minke and sperm whales, as well as sei whales and the blue whale, the largest animal that has ever lived (seen below) have also been seen or heard in New York waters. 

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Why Are There Frogs With Extra Limbs and Missing Eyes in Australia?

There’s something strange happening in Queensland, Australia: the frog populations are dropping like flies and frog deformities are on the rise. One frog doctor (yes, that’s a legitimate thing) blames insecticides, particularly neonicotinoids. The problem is that no one from the academic community or government is taking these issues seriously.

Deborah Pergolotti runs the Cairns Frog Safe project — Australia’s only hospital that serves frog patients — and she’s witnessing disturbing trends. Pergolotti told the Guardian there has been a 95% decline in the Cairns frog population over the last 17 years. Coincidentally, neonicotinoids were first introduced in Australia in 1996 — just three years prior to the decline that Pergolotti cites.

At this point, Pergolotti can only speculate because no one has been looking into the toxicology. “If somebody would get around to doing the toxicology for it, then maybe we might get some proof, but nobody’s interested in the toxicology,” she tells the Guardian.

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Ocean warming primary cause of Antarctic Peninsula glacier retreat

A new study has found for the first time that ocean warming is the primary cause of retreat of glaciers on the western Antarctic Peninsula. The Peninsula is one of the largest current contributors to sea-level rise and this new finding will enable researchers to make better predictions of ice loss from this region.

The research, by scientists at Swansea University and British Antarctic Survey, is published in the journal Science today (Friday, July 15). The study reports that glaciers flowing to the coast on the western side of the Peninsula show a distinct spatial correlation with ocean temperature patterns, with those in the south retreating rapidly but those in the north showing little change. Some 90% of the 674 glaciers in this region have retreated since records began in the 1940s.

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Black bear links real objects to computer images

American black bears may be able to recognize things they know in real life, such as pieces of food or humans, when looking at a photograph of the same thing. This is one of the findings of a study led by Zoe Johnson-Ulrich and Jennifer Vonk of Oakland University in the US, which involved a black bear called Migwan and a computer screen. The findings are published in Springer's journal Animal Cognition.

The study forms part of a broader research project into the welfare of bears in captivity. It aims to find out how the animals themselves rate the environment in which they are held, and the facilities, food and features provided to them. The goal is to assess this by presenting bears with photographs of objects. To do so, the research team first had to assess whether bears are in fact able to recognize 2-D images of objects and people familiar to them when these are presented to them on a touch screen.

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