Science and Environment

Hurricanes, oil spills, and the latest efforts to manage them.

We Americans are heavy consumers of meat, and we're increasingly reminded that eating less of it will shrink our carbon footprint. Growing the crops to feed all those animals releases lots of greenhouse gases.

The Mississippi River in Louisiana has reopened to vessel traffic after an oil spill. Mariners are asked to report any oil spotted along the river.

The Coast Guard says more than 31,000 gallons of crude oil spilled from a barge that collided with a towboat Saturday. Just over 1,000 gallons of an oily water mix have been recovered.

River traffic between New Orleans and Baton Rouge was blocked, leaving vessels stuck in traffic.

Imagine you're in a college-level architecture class and your assignment is to come up with an idea so revolutionary that it could be considered an important advance in industrial design.

The company in charge of the Keystone XL extension said Thursday that it is considering its next move now that a Nebraska judge has struck down a law that allowed the pipeline to be routed through that state.

"We are disappointed and disagree with the decision of the Nebraska district court and will now analyze the judgment and decide what next steps may be taken," TransCanada Corp. said in a statement. "Nebraska's attorney general has filed an appeal."

President Obama said Tuesday that he has told the Environmental Protection Agency to work with the Department of Transportation on a second round of regulations to improve the fuel efficiency of medium- and heavy-duty trucks. The goal: reduce the amount of greenhouse gas emissions they contribute to the environment.

We often talk about climate change as a matter of science. But the biggest questions are really about money. How much would it cost to fix the problem — and what price will we pay if we don't?

The man who invented the field of climate economics 40 years ago says there's actually a straightforward way to solve the problem. William Nordhaus has written a book that lays it out in simple terms.

From cinnamon buns in the morning to a burger after a long run, food never smells as good as when you're superhungry.

Now scientists have uncovered a clue as to why that might be — and it lies in the munchies and marijuana.

Receptors in the brains of mice that light up when the animals are high are also activated when the critters are fasting, French scientists reported Sunday in the journal Nature Neuroscience.

There's been a surge in earthquakes in the U.S. over the last few years. In Texas, there are 10 times the number of earthquakes now than just a few years ago.

Scientists say it's likely linked to the boom in oil and gas activity, meaning that people who never felt the ground shake are starting to.

Here's how Pat Jones of Snyder, Texas, describes the earthquake that struck her town in 2010: "It just sounded like some car hit the back of our house. We got up and checked around and we didn't see anything or hear anything else."

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The Keystone XL oil pipeline may be closer to being built. The U.S. State Department's released an environmental impact statement that says the project would not make climate change any worse, and it's now up to President Obama to decide the fate of the pipeline. NPR's Jeff Brady reports that environmental groups and many Democrats want the president to reject the review's findings.

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