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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.

  • Dec 8, 2017

President Trump drastically reduced the size of two national monuments in Utah, potentially opening about 2 million acres of public land to mineral extraction and other activities in a state in which about 65 percent of all land is federally owned.

  • Dec 7, 2017

The plan relies on a promising but unproven system to destroy it with another missile.

  • Nov 29, 2017

Add a side of science to your Turkey Day feast with these sticky, spicy and somewhat silly tidbits.

  • Nov 15, 2017

What protests looked like on every NFL sideline.

  • Sep 25, 2017

After days of terrifying predictions, preparation and evacuations, Irma arrived in the Florida Keys on Sunday morning and on the Florida mainland Sunday afternoon.

  • Sep 10, 2017

Irma’s maximum sustained winds were measured at 185 mph on Tuesday. Only one Atlantic storm in recorded history has exceeded that level.

  • Sep 6, 2017

The storm is big, fast and speeding westward toward Puerto Rico and Florida

  • Sep 5, 2017

The most recent test was the regime’s biggest by far, but it is still small compared to those in other country’s arsenals.

  • Sep 3, 2017

Here’s a look at how far runners in each generation would get — if the race were a massive relay.

  • Oct 28, 2016
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