John Pickrell

John Pickrell is a freelance writer based in Sydney and the author of Flames of Extinction: The Race to Save Australia’s Threatened Wildlife. He was a science writing intern at Science News in 2002.

All Stories by John Pickrell

  1. Health & Medicine

    Federal Government Launches Organic Standards

    Though for decades some foods have carried the label “organic,” consumers never could be sure exactly what the term meant. Action by the Department of Agriculture last week should clarify things. USDA USDA On Oct. 21, USDA implemented regulations governing the production and labeling of organic foods. Until now, bodies from state governments to trade […]

  2. Earth

    Air-Pollution Pileup: Mediterranean endures emissions from afar

    Although most Mediterranean countries aren't big polluters, the area is a crossroads for pollution-carrying air currents from Europe, Asia, and North America.

  3. Health & Medicine

    Less Crying in the Kitchen: Tasty, tearfree onions on the horizon

    The discovery of a new enzyme responsible for creating the tear-inducing chemicals found in onions may herald the arrival of genetically modified tearfree onions.

  4. Earth

    Lawn Agent Cues Embryo Shortfall: Herbicide weeds out mice in the womb

    Minuscule amounts of over-the-counter weed killers impair reproduction in mice.

  5. Health & Medicine

    Iron Cooking Pots Help Combat Malnutrition

    Iron deficiency, the most common nutritional disorder in the world, is a major problem in many developing countries. The World Health Organization (WHO) currently estimates that a mind-boggling 4 to 5 billion people may suffer from some form of iron deficiency–that’s 66 to 88% of the world’s population. Up to 2 billion of these people […]

  6. Health & Medicine

    Another Polio? Alarming West Nile fever risks emerge

    Medical workers have found poliolike symptoms in a few victims of West Nile fever, and federal officials noted that blood transfusions appear to have infected some people.

  7. Earth

    Cancer Causer? Researchers zero in on leukemia risks

    Researchers add to mounting evidence that household pesticide exposure may be a significant risk factor for childhood leukemia.

  8. Humans

    Small Steps: World Summit delegates wrangle over eco-friendly future

    Twenty thousand delegates from around the world met in Johannesburg last week for a contentious World Summit on Sustainable Development.

  9. Health & Medicine

    Arctic Sneeze: Greenlanders’ allergies are increasing

    Allergies in Greenland nearly doubled from 1987 to 1998.

  10. Earth

    Uncertainty returns over sex-change fish

    Scientists question whether a potentially gender-bending hormone found in polluted Florida streams is responsible for masculinized female fish.

  11. Health & Medicine

    Pet exposure may reduce allergies

    Exposing children to cats or dogs at an early age may make them less prone to allergies later in life.

  12. Animals

    What’s the Mane Point? Foes and females both have role

    The condition of a lion's mane apparently advertises high-quality mates to picky females and wards off male adversaries.