(Isaac Brekken / The Washington Post)
Out West, ‘big solar’ is booming
High-tech plants that use the sun to generate electricity are coming online, but a smaller future looms.
Surgeon general report links more diseases to smoking
Smokers now have much higher chance of lung cancer than did smokers in 1960s, report finds.
Environmental groups criticize Obama
Groups want climate test applied to all energy decisions, while industry presses for more oil, gas production.
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W.Va. chemical spill poses a new test for lawmakers
It has been 38 years since Congress passed a major piece of legislation regulating toxic chemicals.
Obama adviser scolds environmental groups for criticism
John Podesta is ‘surprised’ they would question the president’s commitment to action on the climate.
Federal judge upholds health law subsidies
Plaintiffs had argued that people in 34 states were not eligible for premium assistance.
Study: Rodent empathy is environmental, not genetic
Rats will only help other rats they are socially familiar with, whether they are of the same or a different strain.
Young adults lagging behind in health plan sign-ups
More 18-to-34-year-olds need to buy insurance under the law to keep premiums in check, analysts say.
How effective are light boxes in staving off winter blues?
Studies suggest the devices can help people with seasonal affective disorder.
Feeling mad? New devices sense mood — and tell others.
A wrist device and a special vest are among innovations that can transmit your mood — and show it, too.
Fossils show transitional link from fins to limbs
A 375 million-year-old fish is seen as a transitional fossil with traits common to four-footed animals.
Multimedia
Chemical spill in West Virginia
A foaming agent used in the coal-preparation process leaked into the Elk River near Charleston, W.Va., on Jan. 9.
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Ease the discomfort caused by viruses that attack the nose
Drinking fluids and using saline sprays can be effective, though a decongestant is sometimes needed.
An asteroid makes a different kind of impact
For the second time in history, scientists identified an asteroid before it got here. Also: A new book on polio.
The best way to open a pomegranate
Unlocking a super fruit’s ruby jewels. Also: Runner’s World offers best 2014 marathons.
Chewing gum may provoke migraines, tension headaches
In a study, some young people who stopped using gum saw their pain return once they resumed chewing.
Health and the aging athlete; chiropractic neck cracking
Letter writers have something to say about two recent Washington Post health articles.
Kaiser Health News
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How to fire your doctor
First, make sure you have another one lined up — and get all your prescriptions and records.
How & Why/EcoLOGIC
Is Rainbow Loom harmful to the environment?
Those little synthetic rubber bands, if not discarded properly, can hurt small animals.
What’s the greenest way to decorate for the holidays?
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Hint: It’s more efficient than popcorn — and brighter.
Urban Jungle
The cardinal and the tuliptree
As winter advances, choice foods become scarce and eating grows riskier and less efficient.
Medical Mysteries
Intractable depression — or something else?
Drugs and shock treatments failed to treat a woman’s worsening mental illness.
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.
Do Americans think the government can recover from Obamacare's disastrous rollout, or is it too late?
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.The Post Most: National
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