Greenhouse gas emissions remain the "primary threat" to polar bears, according to a study released Tuesday by the U.S. Geological Survey. Polar bear populations will decline even if emissions are stabilized...
The 25th annual EarthFair is coming to Balboa Park this Sunday, celebrating a sustainable lifestyle and what it means to go green on Earth Day.
A new study has found that more fish may be the answer to saving coral reefs, NBC News reported.
Scientists say the pristine, undisturbed icy continent can help us understand the early Earth — and where we might be headed.
University of California, Davis researchers working to save an endangered Mojave Desert rodent have successfully bred some of the animals in captivity.
A San Francisco supervisor wants to require new buildings in the city to have solar panels, gardens or both on their roofs.
An electric vehicle advocacy group says California surpassed the 100,000 mark for electric and plug-in hybrid cars.
According to organizers, the event is the largest free annual environmental fair in the world, drawing an average of 60,000 people.
In honor of Earth Day, Alpine is hosting a community cleanup and recycling day on Saturday, right in the heart of town.
Click to see some fascinating images of air pollution throughout the US from the...View gallery
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