Science

One key chemical tool used to control mosquito-spread malaria in the developing world -- DDT -- has harmful environmental consequences. Now a new article in the journal Nature tells of research on chemicals that may promise to be effective mosquito repellants by blocking the insects' ability to detect carbon dioxide.

"In an age of angst about security and Arctic sovereignty, it's no mean feat piecing together an oceanographic expedition involving scientists from the United States, Russia and elsewhere and launching the whole affair from a northern U.S. port."

"An online encyclopedia aiming to describe every type of animal and plant on the planet has reached 170,000 entries and is helping research into aging, climate change and even the spread of insect pests."

"As fears were growing about the link between hormone therapy and breast cancer, a drug company paid the University of Wisconsin to sponsor ghostwritten medical education articles that downplayed the risks, records obtained by the Journal Sentinel show."

"The deadly bacterium, responsible for recent pistachio and peanut recalls, can live in many wild animals and in almost any climate. and it's thriving in our modern lifestyle."

As scientists watch the 11-year cycle of increasing and decreasing sunspots, they are finding that the Sun seems to be in an unusually calm period. The observation raises questions about the Sun's influence on climate.