
Europe’s coal plants will be allowed to emit more deadly pollutants than their notorious Chinese counterparts under EU proposals for new air quality rules heavily influenced by the big energy lobby, new research has found. A Greenpeace investigation has found new pollution limits for coal-fired power plants currently being discussed by the European Union are significantly weaker than those in place in China, as well as several times weaker than what’s already been achieved by the least polluting plants in other developed economies, including the US and Japan.
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For the first time, an international research team has provided direct evidence of the rate at which individual trees in the Amazonian basin 'inhale' carbon from the atmosphere during a severe drought.
The researchers measured the growth and photosynthesis rates of trees at 13 rainforest plots across Brazil, Peru and Bolivia, comparing plots that were affected by the strong drought of 2010 with unaffected plots. They found that while growth rates of the trees in drought-affected plots were unchanged, the rate of photosynthesis – by which trees convert carbon into energy to fuel their activities – slowed down by around 10 percent over six months. Their paper, published in the journal, Nature, concludes that trees may be channelling their more limited energy reserves into growth rather than maintaining their own health. Computer simulations of the biosphere have predicted such responses to drought, but these are the first direct observations of this effect across tropical forests.
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Temple University researchers have assembled the largest and most accurate tree of life calibrated to time, and surprisingly, it reveals that life has been expanding at a constant rate.
"The constant rate of diversification that we have found indicates that the ecological niches of life are not being filled up and saturated," said Temple professor S. Blair Hedges, a member of the research team's study, published in the early online edition of the journal Molecular Biology and Evolution. "This is contrary to the popular alternative model which predicts a slowing down of diversification as niches fill up with species."
The tree of life compiled by the Temple team is depicted in a new way --- a cosmologically-inspired galaxy of life view --- and contains more than 50,000 species in a tapestry spiraling out from the origin of life.
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Have you ever considered what might be a more eco-friendly alternative to coffins? How about organic burial pods where, instead of headstones, trees are planted on top. Two Italian designers–Anna Citelli and Raoul Bretzel– came up with up a project called Capsula Mundi, an innovative design concept with an environmental twist that addresses the exorbitant use of natural resources associated with traditional burials. Described as “the first Italian project created to promote the realization of green cemeteries in our country,” Capsula Mundi is an egg-shaped pod created to house a deceased human body in the fetal position, which eventually becomes nutrients that nourish the tree above.
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Attendance at schools exposed to high levels of traffic-related air pollution is linked to slower cognitive development among 7-10-year-old children in Barcelona, according to a study published by Jordi Sunyer and colleagues from the Centre for Research in Environmental Epidemiology (CREAL), Spain, published in this week's PLOS Medicine.
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It's no surprise that Arctic sea ice is thinning. What is new is just how long, how steadily, and how much it has declined. University of Washington researchers compiled modern and historic measurements to get a full picture of how Arctic sea ice thickness has changed. The results, published this month in The Cryosphere, show a thinning in the central Arctic Ocean of 65 percent between 1975 and 2012. September ice thickness, when the ice cover is at a minimum, is 85 percent thinner for the same 37-year stretch.
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Rather than just waiting patiently for any pollinator that comes their way to start the next generation of seeds, some plants appear to recognize the best suitors and “turn on” to increase the chance of success, according to a new study published this week.
Being picky may increase access to genetic diversity and thus give the plants a competitive advantage over their neighbors, but there is a risk, the researchers say. If the preferred pollinators decline for any reason, the plants may not reproduce as easily and could decline as well.
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An on-board air filtration system developed specifically for school buses reduces exposure to vehicular pollutants by up to 88 percent, according to a study by researchers at the UCLA Fielding School of Public Health. The high-efficiency cabin air, or HECA, system could help protect the 25 million American children who commute on school buses nearly every day. Children are more susceptible to air pollution than adults because they breathe more quickly and their immune and cardiovascular systems are still developing, said Yifang Zhu, the study’s senior author and an associate professor in the department of environmental health sciences.
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The words ‘organic’ and ‘sustainability’ are bandied around quite a bit. While some won’t eat anything but organic, others deny that there’s any future in organic farming. After all, with a population that’s seven billion-strong and growing, how can we possibly expect organics to feed the world? Or so the critics ask. In their view, feeding the masses simply can’t be done without strong chemicals and genetic modification.
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