Low winter snow pack and a hot, dry spring set the conditions for wildfires and melting glacier ice, which scientists say are consistent with climate change predictions.
Two new US government reports paint a very bad picture for polar bears, which are under threat due to diminished sea ice extent in the Arctic, a region that is warming at twice the rate as the rest of the world.
What can a Dwayne Johnson movie teach California about disaster preparedness?
The rate of induced earthquakes is rising so rapidly that the US Geological Survey now includes them in their hazard models.
A software update is all it would take to make your phone a cheap, effective early warning system.
A new USGS study isn't an earthquake prediction, but it is a warning.
Wide-reaching and long-term monitoring efforts find safer pesticide levels everywhere except urban streams.
The US Geological Survey plans to assess the impact of wind turbines on wildlife, but first it needs to know where they are.
In fact, seismologists aren't even able to pinpoint exactly where the fault is because it has been quiet for more than 1,000 years.