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The border wall would make flash floods in the desert far more destructive..
It might be just a lot of hot air, but if it's built, Trump's border wall would be bad for global warming.
The La Brea Tar Pits can tell us as much about the present as they can the past.
Many biologists say they're spending too much time in the lab. Citizen science programs could help change that.
Children born this year could see hundreds of square miles of California underwater by the time they reach their forties.
No one said saving the planet was going to be easy.
Between 2001 and 2011, California developed an acreage of wildlife habitat the size of L.A. and San Diego combined.
Birding? Beach Cleanup? Nuclear meltdown tours? SoCal Earth Day has something for everyone.
Citizen science is a means by which we continue to cast off the shackles of the Middle Ages.
NASA provides data on the urban forest: it's your job to measure the trees.
The project, expected to cost at least $17 billion, may well be under salt water by 2100.
Without talented volunteers, tons of whale data would go un-crunched.