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Earth & Environment

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Each year between 1984 and 2011, the area of scorched land increased by 355 square kilometers.

ANTIBACTERIAL BACKFIRE  Soaps that contain triclosan, a commonly used antimicrobial compound, could actually help disease-causing bacteria colonize the human nose. 

SMELL NO EVIL  Young damselfishes (shown) living in carbon dioxide-rich waters have trouble detecting predator odors, compared to fish in areas with less CO2 dissolved in the water.  

  • Climate

    Letters to the Editor

    Feedback

    Readers discuss the influence of clouds on climate, how to treat addiction and which human-made hazards are the biggest bird-killers.
  • Earth

    
    Science Ticker

    Surge seen in number of U.S. wildfires

    The number and size of wildfires in the western United States has steadily risen over the last three decades.

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    Science Ticker

    Huge space rock rattled Earth 3 billion years ago

    An asteroid almost as wide as Rhode Island may have plowed into Earth 3.26 billion years ago, leaving its mark in South Africa’s Barberton greenstone belt.

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  • Agriculture

  • Ecosystems

  • Toxicology

    
    Science Ticker

    Handling receipts increases exposure to BPA

    People who handle cash register receipts printed on thermal paper show notable exposure to bisphenol A.

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  • Pollution

    
    Science Ticker

    Artists' sunsets may reveal past pollution

    The colors artists used in the sunsets of their paintings may provide clues to what was circulating in the air hundreds of years ago.

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  • Sustainability

  • Oceans

    
    Wild Things

    The surprising life of a piece of sunken wood

    Timber and trees that wash out to sea and sink to the bottom of the ocean hold a diverse community of organisms.

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