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Any wind can exacerbate a wildfire, but unique traits of southeastern California’s Santa Ana winds make them particularly effective at spreading fires.
The plan relies on a promising but unproven system to destroy it with another missile.
Outside San Diego, six construction companies have built eight border wall prototypes
How earthquake early alert systems work
After days of terrifying predictions, preparation and evacuations, Irma arrived in the Florida Keys on Sunday morning and on the Florida mainland Sunday afternoon.
The most recent test was the regime’s biggest by far, but it is still small compared to those in other country’s arsenals.
Floods can leave thousands of homes beyond repair, but many can be saved.
GRAPHIC: How to cut a raw chicken into pieces to save money