If you’re wondering why blackface — mimicking people of African descent via stereotypes and makeup-darkened skin — is a big deal, then perhaps a little history lesson can help demystify the outcry. Dwan Reece, curator…

The seemingly mundane electronics you use every day — your stove, dishwasher, TV and much more — have a cumulative effect on the climate, says Best Buy’s director of environmental affairs Tim Dunn. He shares…

From “got milk?” to “avocados from Mexico,” marketing influences what you eat more than you may realize. But despite the known power of food marketing, farmers in Africa are more likely to receive funding for…

Over the last two decades, the wind power industry has grown at a dizzying pace. (Fun fact: a single rotation from one of the world’s most powerful wind turbines can generate enough electricity to charge…

Could we use the energy from light and sound to detect disease? TED Fellow Lei Li shares the exciting promise of photoacoustic imaging: an affordable, painless and accurate method of converting light into sound in…

In an engaging, insightful conversation, criminal justice reformer Nick Turner breaks down the ways the US criminal legal system perpetuates centuries-old racial and economic inequality. He joins TED current affairs curator Whitney Pennington Rodgers to…

Consent can be a tricky topic to talk about in sex education curriculums, but it doesn’t have to be. In this hilarious and relatable talk, sex educator and TED Fellow Kaz offers a fresh look…

Buildings are bad news for the climate — the indoor spaces we spend most of our lives in emit 40 percent of the world’s greenhouse gases. Rethinking how to create and occupy the spaces we…

“The way we cool things down is heating the planet even more,” says sustainable development expert Rachel Kyte — and the solutions go well beyond just fixing air-conditioning. She identifies four major areas with transformative…

Short-sightedness may be the greatest threat to humanity, says conceptual artist Katie Paterson, whose work engages with deep time — a concept that describes the history of the Earth over a time span of millions…