Earth

  1. Chemistry

    Fluorescent bulbs offer mercury advantage

    Featured blog: Switching to light bulbs that contain mercury might, surprisingly, reduce overall mercury releases to the environment. Plus, what to do when you break your fluorescent bulb.

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  2. Earth

    Let’s Get Vertical

    City buildings offer opportunities for farms to grow up instead of out.

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  3. Earth

    Tough meteorite made a big impact

    The stony meteorite that landed in a remote portion of Peru in September 2007 was traveling abnormally fast when it struck and blasted a crater that was unusually large for the its size, new analyses indicate.

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  4. Earth

    New contender for Earth’s oldest rocks

    Observing rare isotopes in rocks along the Hudson Bay in Northern Quebec suggest the rocks have remained intact for 4.28 billion years, making them Earth's oldest.

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  5. Earth

    Continental clash cooled the climate

    The collision between India and Asia set off events that caused long-term cooling in Earth’s climate, new research suggests.

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  6. Climate

    (Political) party animals

    Featured blog: When it comes to attitudes about climate change, the chasm between Democrats and Republicans is wide. Political-polling analysts speculate that a McCain win in November might do more than an Obama victory to win over the minds of climate-change skeptics.

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  7. Climate

    Energy: Apollo-like Program Needed

    Big action and big bucks are needed to deal with the United States' energy problems, research leaders argued today.

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  8. Climate

    Heat waves stunt grassland growth

    An abnormally hot year can significantly suppress growth in grasslands, a stifling effect that lingers well into the next year even if temperatures return to normal. It can also hinder how well the grasslands absorb carbon dioxide from the atmosphere.

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  9. Astronomy

    McCain Is Bullish on R&D

    Featured blog: John McCain weighs in on science and technology issues with long-awaited written responses to the Science Debate 2008.

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  10. Paleontology

    Dino domination was in the cards, maybe

    A new study finds that early dinosaurs coexisted with and were outnumbered by a competing species. Dinosaurs eventually reigned supreme anyway, but perhaps not because they were better.

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  11. Tech

    Cops Might Get Pollution Sniffers

    One day soon, precise up-to-minute air pollution data might be available at a street-by-street level.

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  12. Agriculture

    Network Antennas — Yum!

    Sensor designers might have to consider engineering in bovine deterrence.

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