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Headlines and summaries of the latest Science News articles, delivered to your email inbox every Thursday.
  1. Earth

    Report of earlier, longer puberty in girls

    A Danish study finds young girls are entering puberty notably earlier than 15 years ago — for reasons that remain unknown.

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  2. Health & Medicine

    Science budgets look rosy, AAAS finds

    The president and Congress have collaborated in targeting substantial increases for federal investments in R&D this year.

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  3. Climate

    On federal science — and science spending

    Things you might have gleaned at the AAAS Forum on Science and Technology Policy.

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  4. Earth

    A limit for carbon emissions: 1 trillion metric tons

    To reduce risks of severe damage from climate change, humans should burn no more than 1 trillion tons of carbon in total, researchers suggest.

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  5. Plants

    Climatic effects of tree-killing hurricanes

    A new analysis suggests storm damage returns millions of metric tons of carbon dioxide to the atmosphere each year.

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  6. Physics

    Obama pledges 3 percent of GDP for research

    Pledges for big budget increases for research, permanent tax credits for reseach by industry and more were announced today.

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  7. Ecosystems

    Living Physics

    From green leaves to bird brains, biological systems may exploit quantum phenomena.

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  8. Plants

    Landscaper’s darling hybridizes into an environmental nuisance

    Variation underlies the Callery pear tree’s transformation .

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  9. Earth

    A little air pollution boosts vegetation’s carbon uptake

    Aerosols bumped up world’s plant productivity by 25 percent in the 1960s and 1970s, new research suggests.

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  10. Earth

    Fossil of a walking seal found

    A fossil skeleton discovered in the Canadian Arctic could represent a missing link in pinniped evolution.

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  11. Agriculture

    News from Experimental Biology

    Senior editor Janet Raloff blogs from the 2009 meeting gathering dozens of societies together in New Orleans

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  12. Climate

    EPA says greenhouse gases ‘endanger’ health

    Featured blog: New ruling is a likely first step toward federal moves to cut tailpipe emissions of carbon dioxide and more.

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