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Manmade Mass Now Outweighs Life On Earth: Study by Patrick Galey

For the first time in history manmade materials now likely outweigh all life on Earth, scientists said Wednesday in research detailing the “crossover point” at which humanity’s footprint is heavier than that of the natural world. The weight of roads, buildings and other constructed or manufactured materials is doubling roughly every 20 years, and authors […]

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The First Denisovan DNA Outside Siberia Unveils A Long Stint On The Roof Of The World by Bruce Bower

Genetic evidence puts Denisovans on the Tibetan Plateau from 100,000 to 60,000 years ago. Cave sediment possibly dating from 50,000 to 30,000 years ago also yielded Denisovan mitochondrial DNA, the scientists report in the Oct. 30 Science. If further research confirms that age estimate, it raises the likelihood that Denisovans survived on the Tibetan Plateau […]