Green Party candidate Stein arrested
She was attempting to resupply protesters camping out in trees to oppose the Keystone XL pipeline.
Sandy a reality check for Web economy
Storm proves that world of commerce and finance still needs more than Internet highways to function.
3 nuclear power reactors shut down during Hurricane Sandy
Fourth plant in New Jersey was put on alert; situation is deemed a wake-up call by scientists group.
Health, Science & Environment Videos
Capital Weather Gang previews winter outlook for D.C. Council
Capital Weather Gang previews winter outlook for D.C. CouncilCapital Weather Gang previews winter outlook for D.C. Council
Capital Weather Gang previews winter outlook for D.C. CouncilQuick glimpse of National Zoo’s baby panda
The National Zoo’s panda cam caught a shot of mother panda Mei Xiang picking up her cub on Monday evening.Visitors flock to National Zoo to see baby panda
The National Zoo’s giant female panda Mei Xiang gave birth Sunday night. Visitors joined the new mother at the zoo Monday to celebrate the new baby.Flooding in Slidell after Hurricane Isaac
Parts of Slidell, a suburb of New Orleans, are flooded Thursday in the aftermath of Hurricane Isaac. U.S. Army National Guard members and residents with boats evacuated people stuck in flooded areas of the town.Isaac bears down on New Orleans
Tropical Storm Isaac, which was downgraded from a hurricane, continues to slowly ravage the New Orleans area. Lake Pontchartrain crashes onto Interstate 10 North outside the city to flood the area, and people asses damage around the city.Hurricane Isaac provides major surf at Louisiana lake
New Orleans residents take advantage of big waves and high winds before Hurricane Isaac makes landfall at Lake Pontchartrain.National parks feel budget squeeze
Many of America’s national parks and monuments are feeling the pinch of a 6% funding cut , with more budget challenges on the horizon.Special Report
Exploring Antarctica
The frozen landscape, dry valleys and active volcanoes that make up Antarctica provide a living laboratory for scientific study and a wondrous journey for those traveling to the ends of the Earth.
Featured Galleries
Obama administration rejects Keystone pipeline
The supporters and opponents of the controversial pipeline.
Aerial views of coal mining operations
Coal production’s center in the U.S. has moved to Wyoming and Montana.
Elsewhere in National
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Halloween: The science of bats
Live Q&A; transcript
Just in time for Halloween, a bat expert and a Post reporter answered reader questions about bats.