
How Climate Change Helped Fires Cross the Sierra Nevada for the First Time
High, rocky peaks are no longer an insurmountable hurdle for ever fiercer flames fueled by heat and drought

How Climate Change Helped Fires Cross the Sierra Nevada for the First Time
High, rocky peaks are no longer an insurmountable hurdle for ever fiercer flames fueled by heat and drought

Democrats Seek ‘Historic’ Changes to U.S. Flood Program
Proposed legislation includes funding to redo badly out-of-date flood risk maps


‘Explosive’ Dixie Fire Could Become Biggest in CA History
Extremely dry conditions could help the blaze overtake last year’s August Complex fire as the record holder

Hurricane Ida May Spark Mass Migration
Like Katrina before it, the storm may make living conditions untenable in hard-hit areas

Understanding Pyrocumulonimbi, aka ‘Fire Clouds’
Caused by wildfires, they can trigger lightning, create fire tornadoes and turbocharge winds that accelerate the spread of a conflagration

How Hurricane Ida Got So Big So Fast
An eddy in the Gulf of Mexico and some heavy vapor played key roles

Hurricane Ida: How Climate Change Is Influencing Storms
Rising temperatures are increasing the hurricane risks to New Orleans and other coastal area

Home Seismometers Provide Crucial Data on Haiti’s Quake
A volunteer network helps to monitor aftershocks and illuminate the country’s earthquake hazards

How Warming Is Affecting Northern Storms Such as Henri
Tropical cyclones are wandering farther north and maintaining high intensity

Tropical Storm Henri Could Bring Dangerous Storm Surge
The moon, wind direction, atmospheric pressure and seafloor shape all help determine how high a surge will be

The True Haiti Earthquake Death Toll Is Much Worse Than Early Official Counts
A tool built by the U.S. Geological Survey suggests that the number of fatalities may range from 10,000 to 100,000 or more

New Wildfire Tactic: Help People Flee
California firefighters are updating evacuation maps and keeping routes free