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Airline Air

Contaminated air pumped back into passenger cabin areas that has mixed with some jet engine exhaust may be creating permanent disability and even death among airline employees and passengers.

Eat Safer

To help consumers know which drinks and foods are still being sold in cans lined with endocrine-disrupting BPA, the Environmental working Group’s website lists 16,000 BPA-tainted products.

Lobster Liberation

Canadian monks bought up all the live lobsters at a fish market, chartered a boat, and set them free as an exemplary act of compassion.

Smog Begone

As the world’s eighth-largest economy, California is throwing its weight behind greenhouse-gas reduction by setting ambitious 2030 goals and putting 1.5 million zero-emission state cars on the road.

Reforesting India

About 800,000 volunteers planted a staggering 49 million trees on a single day last year in India as part of an international effort to reforest the planet.

Bird Buffet

When avians crowd together to eat from feeders they can pick up parasites and viruses from each other, but there are ways to ensure their safety and our viewing pleasure.

Ocean Watch

This year scientists discovered a new whale species in the Bering Sea and long-living orcas in the Pacific, even as dolphins in China, Hong Kong and Gulf of California waters are rapidly disappearing.

Bye-Bye Birdies

Factors as diverse as island rats and cats, overfishing and plastic products are putting a third of all North American bird species at risk of extinction.

Good Move

China is using a campaign by Hollywood icons Arnold Schwarzenegger and James Cameron.to urge its citizens to eat half as much meat.

Extinction Scenario

The risk of humans disappearing from the Earth is estimated at one-tenth of a percent every year, say environmental biologists, but rising temperatures and populations may push that probability up to 3 percent.