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  1. Chemistry

    Study reports hints of phthalate threat to boys’ IQs

    You may have a hard time spelling phthalates, but there’s no avoiding them. They’re in the air you breathe, water you drink and foods you eat. And this ubiquity may carry a price, particularly for young boys, emerging data suggest. Including a drop in their IQ.

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  2. Climate

    Alaskan peatlands expanded rapidly as ice age waned

    The rapid growth of Alaskan wetlands before 8,600 years ago was due to hotter summers and colder winters, which could spell trouble in a warmer world, a new study suggests.

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  3. Chemistry

    Skin as a source of drug pollution

    Traces of over-the-counter and prescription meds taint the environment. The presumption Ì and it's a good one Ì has been that most of these residues come from the urine and solid wastes excreted by treated patients. But in some instances, a leading source of a drug may be skin Ì either because the medicine was applied there or because people sweat it out.

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  4. Planetary Science

    Warmth in the dark age

    Lower reflectivity kept Earth from freezing under a fainter young sun.

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  5. Chemistry

    Mothballs deserve respect

    I don’t use mothballs — except sometimes to sprinkle down the burrows of animals excavating tunnels beneath the deck floor of my pergola. It’s the most effective stop-work order for wildlife that I’ve found. But I won’t use these stinky crystals inside my home because they scare me. And those fears appear justified, according to Linda Hall of the California Environmental Protection Agency.

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  6. Tech

    Smokin’ entrees: Charcoal grilling tops the list

    At the American Chemical Society meeting, earlier this week, I stayed at a hotel that fronted onto the kitchen door of a Burger King. This explained the source of the beefy scent that perfumed the air from mid-morning on – the restaurant’s exhaust of smoke and meat-derived aerosols. A study presented at the meeting confirmed what my nose observed: that commercial grilling can release relatively huge amounts of pollutants.

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  7. Humans

    Wildlife trade meeting disappoints marine scientists

    The 15th meeting of signatories to the CITES treaty ended on March 25 without passing several proposals to protect high-profile fish species.

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  8. Earth

    Alternative flame retardants leach into the environment

    Supposedly safer chemicals are spotted in peregrine falcon eggs in California.

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  9. Paleontology

    Tyrannosaurs lived in the Southern Hemisphere, too

    Australian fossils suggest the kin of T. rex dispersed globally 110 million years ago.

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  10. Chemistry

    Building a cheaper catalyst

    Using perovskite instead of platinum in catalytic converters could shave many hundreds of dollars off the cost of a diesel car.

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  11. Chemistry

    The skinny on indoor ozone

    Indoor concentrations of ozone tend to be far lower than those outside, largely because much gets destroyed as molecules of the respiratory irritant collide with surfaces and undergo transformative chemical reactions. New research identifies a hitherto ignored surface that apparently plays a major role in quashing indoor ozone: It’s human skin. And while removing ozone from indoor air should be good, what takes its place may not be, data indicate.

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  12. Earth

    Bacteria show new route to making oxygen

    New discovery adds to the few known biological pathways for making and metabolically using the gas.

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