Ecosystems
- Ecosystems
Pacific Northwest salmon poisoning killer whales
A protected population of resident orcas around Vancouver Island and Puget Sound is the planet’s most PCB-contaminated mammals, says one researcher.
- Agriculture
Candy cane strategy sweetens life for goldenrods
Goldenrods temporarily duck their heads during pest season
- Earth
Obama administration should lead energy transition
R.K. Pachauri, an engineer and economist by training, is director-general of The Energy and Resources Institute in New Delhi, India, and a corecipient of the 2007 Nobel Peace Prize for his role as chief of the Intergovernmental Panel on Climate Change. The IPCC periodically issues consensus reports on the science of climate change. Senior editor Janet Raloff spoke with him about changes he hopes to see from the Obama administration.
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- Health & Medicine
Honeybee CSI: Why dead bodies can’t be found
Virus could explain one symptom of colony collapse.
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- Ecosystems
Eating the Sun: How Plants Power the Planet by Oliver Morton
HarperCollins, 2008, 460 p., $28.95.
- Ecosystems
Costs of Choked-Up Waters
Scientists tally the economic toll of fertilizing pollutants on water quality.
- Animals
Farm chemicals can indirectly hammer frogs
A widely used agricultural weed killer teams up with fertilizer to render frogs especially vulnerable to debilitating parasites.
- Ecosystems
Slave ants rebel
Species vulnerable to enslavement may evolve ways to fight their captors.
- Ecosystems
Coastal dead zones expanding
The number of coastal areas known as dead zones is on the rise. A new tally reports more than 400 of the oxygen starved regions worldwide.
- Plants
Bittersweet fruits
A new study provides strong evidence that fruits harm predators with the same chemicals that, for example, give chili peppers their spice.
