Arctic lease sale flawed, appeals court says
Ruling deals a new setback to Royal Dutch Shell’s efforts to drill for oil in the Chukchi Sea off Alaska.
Oil to start flowing in southern leg of Keystone pipeline
The northern section of the controversial TransCanada project is still awaiting government approval.
Bird watchers at rush hour: A snowy owl descends on D.C.
The sight of the rare bird stops pedestrians in their tracks, and it doesn’t seem to mind the attention.
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Health, Science & Environment Videos
Obamacare's silver lining?
For all of the issues surrounding the rollout of the President's signature health care law, one part seems to be working pretty well—the expansion of Medicaid. Close to 400,000 Americas have learned they are now eligible to enroll, but some states haven't embraced the expansion.Can a November surge help Obamacare?
The Affordable Care Act saw a surge in the month of November with 173,000 people signing up in their state-run marketplaces. But will young people sign up in the numbers needed to support the program?Three Obamacare fixes explained
Wonkblog’s Sarah Kliff breaks down three proposals that would help Obama make good on his promise.Kliff Notes: How did Obamacare change?
Wonkblog's Sarah Kliff explains how Obamacare is changing after many insurance policies were canceled, and how the president plans to un-cancel some of them.Kliff Notes: Will Obamacare cancel my plan?
Wonkblog's Sarah Kliff explains why a lot of people's health insurance policies might get cancelled.Kliff Notes: HealthCare.gov's 3 problems
Wonkblog's Sarah Kliff walks through the three main problems bogging down the Affordable Care Act's online marketplace.Kliff Notes: Obama's health care speech
Wonkblog's Sarah Kliff shares her "Kliff Notes" for President Obama's remarks defending his signature health care law.Obamacare Q&A: Are all marketplaces created equal?
Wonkblog's Sarah Kliff explains why the Affordable Care Act's health insurance marketplaces are different from state to state.Obamacare Q&A: Who doesn't have to enroll?
Wonkblog's Sarah Kliff explains the exceptions to the Affordable Care Act's individual mandate.Urban Jungle
The cardinal and the tuliptree
As winter advances, choice foods become scarce and eating grows riskier and less efficient.
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
The Post Most: National
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1Mars rover Opportunity finds mysterious 'jelly doughnut rock' on the Red Planet
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2Sheriff: Slain officer wore a bulletproof vest
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3'Obama' filmmaker charged in NY in campaign fraud
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4Little-known aspect of Medicaid now causing people to avoid coverage
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5Singing or sinking? Justin Bieber hits new low
Color of Money
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