OCW
How to power the world 24/7 — without oil
Deep beneath the Earth sits 50,000 times more energy than all the world's fossil fuel reserves, but accessing it requires using the same controversial technology that oil companies spent trillions to develop: fracking. Cindy Taff left Shell to prove that drilling for geothermal heat instead of ..
TED
The brilliance of bacteria (and how they combat waste)
Bacteria are the most incredible creatures on Earth, says biotechnologist and TED Fellow Patricia Aymà Maldonado. She presents a groundbreaking technology that “trains” bacteria to transform organic waste into biodegradable plastic that behaves like the real thing. Learn how this creative, sust..
TED
How we built Watch Duty, the lifesaving wildfire alert app
After finding himself alone in an unreported wildfire in the woodlands of California, John Mills decided to take matters into his own hands. Hear the incredible story of how he rallied fire survivors and retired first responders to create Watch Duty, the nonprofit emergency alert system that’s bea..
TED
How the fridge changed food
What if your kitchen fridge is just the tip of an iceberg that's reshaping the world? Food storyteller Nicola Twilley reveals how the massive “artificial Arctic” we built to keep our food fresh is simultaneously melting the real one. She shows why we're at a critical moment to rethink ..
TED
The army of autonomous robots restoring nature
Impact investor Tom Chi challenges a dangerous assumption: that economic growth and ecological health are opposing forces. He reveals how advances in AI and robotics are enabling a radical shift towards innovation as a force for restoration. Imagine mines that extract less, farms that regenerate soi..
TED
How to see (and stop) deforestation from space
Nearly 20 trees are cut down every second in the Amazon rainforest, as authorities struggle to monitor millions of acres and stop illegal clear-cutting. But land reformer Tasso Azevedo and his team at MapBiomas have changed the game, transforming satellite imagery into precise, real-time maps that m..
TED
