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University of Oxford finds trees inhale less carbon when they are drought – impacted
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…
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Amazon deforestation 'threshold' causes species loss to accelerate
One of the largest area studies of forest loss impacting biodiversity shows that a third of the Amazon is headed toward or has just past a threshold of forest cover below which species loss is faster and more damaging. Researchers call for conservation policy to switch from targeting individual landowners to entire regions.
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New insight on the Tree of Life from Temple University
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.…
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Newest 'green' burial method? Turn your loved ones into trees
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…
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Filtration Systems on School Buses Are Needed to Protect Children from Pollutants
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…
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An Organic Future
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,…
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How did Emperor Penguins survive the last ice age?
The study of how climate change has affected emperor penguins over the last 30,000 years found that only three populations may have survived during the last ice age, and that the Ross Sea in Antarctica was likely the refuge for one of these populations.The findings, published in the journal Global Change Biology, suggest that while current…
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In California, Beavers are essential to recovering wild salmon
With California's wild Coho salmon populations down to 1% of their former numbers, there's growing evidence that beavers – long reviled as a pest of the waterways – are essential to restore the species, writes Maria Finn. In the process, they raise water tables, recharge aquifers and improve water quality. What's not to love?Beavers are…
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Using satellites to monitor forest health
Scientists for the first time have simultaneously compared widespread impacts from two of the most common forest insects in the West – mountain pine beetle and western spruce budworm – an advance that could lead to more effective management policies.By combining data from satellites, airplanes and ground-based crews, the researchers have shown in unprecedented detail…
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Why the sun impacts climate more during cooler periods
The activity of the Sun is an important factor in the complex interaction that controls our climate. New research now shows that the impact of the Sun is not constant over time, but has greater significance when the Earth is cooler. There has been much discussion as to whether variations in the strength of the Sun…