EPA proposes smaller requirements for biofuel use
Corn-based ethanol targets trimmed for the first time in what some call a capitulation to the oil industry.
U.S. oil production reaches milestone
The United States produced more crude oil in October than it imported for the first time since early 1995.
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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.Obamacare Q&A: What if I already have insurance?
Wonkblog's Sarah Kliff explains how insured people can use the Affordable Care Act's health insurance marketplaces.Obamacare Q&A: Can anyone deny me coverage?
Wonkblog's Sarah Kliff explains what changes for people with pre-existing conditions under the Affordable Care Act.Obamacare Q&A: Will I go to jail?
Wonkblog's Sarah Kliff explains what happens if you don't buy health insurance under the Affordable Care Act.Obamacare explained, in 2 minutes
Wonkblog's Sarah Kliff breaks down the policy you need to understand about the Affordable Care Act, from politics to premiums.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.
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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.
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