Mercury Pollution: How to Respond

Mercury Pollution: How to Respond

How should we deal with mercury air pollution in air, fish and water? Why do the studies of mercury consumption not agree? More »

Plant Diversity Under Threat

Plant Diversity Under Threat

New study finds large increase in number of threatened plants, calculates that 22 to 62 percent of plant species are threatened. More »

Globe Heating Up

Globe Heating Up

How do current conditions compare to past predictions of the effects of global warming? Are living on a warming planet? More »

Oil Spill: New Concern

Oil Spill: New Concern

Marine iguana in the Galapagos islands are suffering from trace amounts of oil left by a tanker accident. More »

Dirty Bomb Threat

Dirty Bomb Threat

Suspect arrested, may be charged with trying to develop a dirty bomb. What is a dirty bomb, and how badly would it harm us? More »

Mars Has Big Ice!

Mars Has Big Ice!

Scientists have found ice on Mars. The frozen water, whose quantity may equal Lake Michigan, is within a meter of the surface. More »

Fish Shortages Today

Fish Shortages Today

Causes and effects of overfishing. Why do fishing regulations fail? Where have they succeeded? Like sushi? More »

Wild Places Survive

Wild Places Survive

Conservationists will likely weigh in on offshore drilling of the Alaskan Eden. Come visit the ends of the Earth! More »

Potato Peril? Irish Blight Returns

Potato Peril? Irish Blight Returns

Fungus that caused Irish potato famine is back, threatening potato crops around the world. How did the blight change world history? More »