Pacific Northwest

A NASA satellite image shows fires in the Pacific Northwest, which now hosts 10 times as many large fires as it did before 1960.

• By Francie Diep

Heavy El Niño rains could trigger mudslides in California this winter. These scientists are trying to figure out the whens and wheres.

• By Alisa Opar

Want to know what difference a few degrees can make as the climate warms? Look no further than the West’s critical and vanishing snowpack.

• By Brooke Jarvis

While there’s no crystal ball for forecasting wildfire, experts have come to expect fiercer and more frequent blazes year after year.

• By Alisa Opar