Uncategorized

  1. Earth

    Death downwind

    Pollutants generated by human activity in Europe significantly boost ozone concentrations downwind, harming people’s health and causing thousands of premature deaths in North Africa, the Near East and the Middle East.

    By Sid Perkins
  2. Health & Medicine

    High doses

    Emergency room patients are exposed to high doses of radiation from CT scans and other nuclear medicine.

    By Tia Ghose
  3. Life

    Tracing human roots

    Using a new method of data analysis, researchers have found that the Americas were peopled in two different migrations.

    By Tia Ghose
  4. Climate

    Already feeling the heat

    Long-delayed U.S. government summary of climate change science sees effects on energy, transportation, farming, and water.