Scientists in Washington State monitor the populations and migration patterns of birds of prey, to identify trends.
Although forests help slow global warming, storing enough carbon to offset about 16 percent of the nation's fossil fuel emissions, wildfires can produce massive amounts of carbon dioxide.
Eyewitness accounts and incendiary material point to arson as the cause of the largest fire in the area's history.
Fighting fires in California means danger, exhaustion, and days away from family. A spirit of service – and all the public appreciation – helps a lot.
California firefighters battle a terrible fire season caused by weeks of hot and dry weather.
One possibility: Industrial emitters of CO2 partner with landowners to plant forests.
Outdoor advances such as low-power chips and tiny solar panels let computers get a breath of fresh air.