Environmental scientists are concerned that the planet might not be able to keep up with global meat consumption. A new analysis suggests that the rise in meat consumption, driven by population and income growth, could play a major role in increasing carbon emissions and reducing biodiversity. Livestock production currently accounts for 15 percent of all carbon dioxide, methane and nitrous oxide emissions, and a 2014 study found that giving up beef could reduce a person’s carbon footprint more significantly than if they gave up their car.

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When most people think of fishing, we imagine relaxing in a boat and patiently reeling in the day’s catch. But modern industrial fishing -- the kind that stocks our grocery shelves -- looks more like warfare. Ayana Elizabeth Johnson and Jennifer Jacquet explain overfishing and its effects on ecosystems, food security, jobs, economies, and coastal cultures.

How the food you eat affects your brain
When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So which foods cause you to feel so tired after lunch? Or so restless at night? Mia Nacamulli takes you into the brain to find out.

The life cycle of a t-shirt
Consider the classic white t-shirt. Annually, we sell and buy 2 billion t-shirts globally, making it one of the most common garments in the world. But how and where is the average t-shirt made, and what’s its environmental impact? Angel Chang traces the life cycle of a t-shirt.