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Rio+20 Earth Summit: Leaked Draft Reveals Conflict Among Countries
The latest draft text that 180 governments are expected to sign up to at the end of the Rio+20...
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Earth Approaching Climate Tipping Point
Earth may be nearing an ecological tipping point that threatens biodiversity, food production and water supplies as humans consume...
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Sustainability Hinges on Local Policies, not Global Goals
In the run-up to the UN Conference on Sustainable Development (Rio+20) in Brazil, much has been written about how to...
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Hans Rosling: Religions and Babies
Hans Rosling had a question: Do some religions have a higher birth rate than others — and how does...
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Shifting Trade Routes May Have Been Root Cause of Mayan Decline
The end of the classic Mayan civilization in the lowlands of Mesoamerica was likely expedited by shifting trade routes...
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Leaf ‘Stamp’ Could Detect Crop Diseases
Crop diseases could be detected earlier and more easily if a new method that stamps a leaf with a...
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Has Civilization Passed the Environmental Point of No Return?
Four decades ago, a Massachusetts Institute of Technology computer model called World3 warned of a possible catastrophic course for...
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More Than 1 Billion People at Risk for Lack of Clean Water
This spring the World Health Organization (WHO) celebrated the early completion the 2015 development goal of bringing improved drinking...
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Gene Therapy Extends Mouse Life By 24 Percent
A new study consisting of inducing cells to express telomerase, the enzyme which, metaphorically, slows down the biological clock,...