The most nightmarish scenarios of California's dry future are unlikely to happen. Still, the state must use the crisis as a wakeup call to use water more smartly.
A reader wonders if Cali is going to dry up and blow away. Umbra sprinkles a little wisdom on the subject.
OK, not really. He wants lots of other stuff too.
Check out the city's 592,130 street trees, representing 52 species, all at once.
A new study suggests China's tough new pollution standards might actually be working.
Researchers surveyed over 4,000 American women on their experience of sexual harassment in public spaces.
A new group called Inclusv is trying to build a rainbow coalition for Clinton, and draw more people of color into political campaigns.
Shell wants to use Seattle's port as a staging ground, but citizens and protestors are cooking up plans to block the oil giant's scheme.
The cankerworm invasion continues -- and it's especially bad in cities.