Tag

ecosystems

We need to consider nature as capital to become more sustainable

Researchers today outlined in a series of reports how governments, organizations and corporations are successfully moving away from short-term exploitation of the natural world and embracing a long-term vision of “nature as capital” – the ultimate world bank upon which the health and
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How to minimize drought impact on food crops

The worldwide demand for legumes, one of the world’s most important agricultural food crops, is growing; at the same time, their production has been adversely affected by drought. In an Indiana University-Purdue University Indianapolis research paper published today in the journal PLO
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How studying volcanos can improve aviation safety

A study on ash blasted from volcanoes is a first step towards accurately assessing where it is safe to fly during eruptions, according to the authors. The researchers found that the ash grains ejected into the atmosphere have diverse shapes and properties. They also learned that big g
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First Wave Energy Device in US Powers Hawaii Military Base

<!– –> The first grid-connected wave energy device in North American waters started feeding renewable electricity to a Marine Corps base in Hawaii last week. In coordination with the U.S. Navy, Northwest Energy Innovations and the Energy Department brought online a p
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Ladybird colors and toxicity to birds

<!– –> For one of Britain’s best-loved and colourful group of insects, ladybirds, their colour reveals the extent of their toxicity to predators, according to new research undertaken at the Universities of Exeter and Cambridge.  The study which is published today in
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Draining Greenland lakes unlikely to contribute to sea-level rise

<!– –> Each summer, Greenland’s ice sheet — the world’s second-largest expanse of ice, measuring three times the size of Texas — begins to melt. Pockets of melting ice form hundreds of large, “supraglacial” lakes on the surface of the ice. Many of these lakes drain t
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Could genetically modified mosquitos prevent mosquito-borne illnesses?

When people think of genetically modified organisms, food crops like GM corn and soybeans usually come to mind. But engineering more complex living things is now possible, and the controversy surrounding genetic modification has now spread to the lowly mosquito, which is being genetic
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El Niños and Bunny Booms

At times during the past 10,000 years, cottontails and hares reproduced like rabbits and their numbers surged when the El Niño weather pattern drenched the Pacific Coast with rain, according to a University of Utah analysis of 3,463 bunny bones. The study of ancient rabbit populations
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Birds imitate alarm calls of others to warn of hawks

<!– –> New research has found that the 6 gram brown thornbill mimics the hawk alarm calls of neighbouring species to scare a nest predator by convincing it that a much bigger and scarier predator – the brown goshawk – is on its way. Currawongs, which raid
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Connecting Elevation and Evolution

Paleontologists have documented how dramatic shifts in climate have led to dramatic shifts in evolution. One such event, the Grande Coupure, was a wipeout of many European mammal species 33.9 million years ago when global temperatures and precipitation declined sharply. What has been
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