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US, family urge China to free anti-censorship activist
The United States on Tuesday urged China to release anti-corruption and free speech activist Yang Maodong as his wife voiced fear that he was being mistreated following his latest detention. ... more
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Ancient mini-sharks lived longer than thought: study
A line of mini-sharks thought to have perished in Earth's "Great Dying" event some 250 million years ago, in fact lived another 120 million years, said researchers Tuesday who found samples of their miniscule fossil teeth. ... more
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Brazil energy, farm incentives fuel CO2 emissions
Tax incentives approved by the Brazilian government for transport, energy and farming are fueling higher CO2 emissions, according to a study released Tuesday. ... more
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Scientists eye longer-term forecasts of US heat waves
Scientists have fingerprinted a distinctive atmospheric wave pattern high above the Northern Hemisphere that can foreshadow the emergence of summertime heat waves in the United States more than two ... more
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