OCW
How a special seaweed is lowering methane emissions—one cow burp at a time
Did you know that cows emit methane when they burp? Livestock account for over 12% of the world’s greenhouse gas emissions, but farmers and scientists have discovered a superfood that might be the key to lower emissions—and raise healthier cows. In this episode, Ryan and Anjali investigate the m..
TED
The affordable tech that will revolutionize farming
When entrepreneur Samir Ibrahim asked farmers in Kenya what problem they most needed solved, the answer was simple: reliable access to water to irrigate their farms year-round. Samir is the CEO of SunCulture, a company replacing diesel- and petrol-powered water pumps with more affordable solar-power..
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
The ethical case for taking on the climate crisis
For the first time in climate negotiations, leaders are asking the question that actually matters: not just how do we solve the climate crisis, but why aren't we? Join Nobel laureate Al Gore for an in-depth conversation with Wanjira Mathai and Karenna Gore, co-leaders of the Global Ethical Stoc..
TED
How AI is unearthing hidden scientific knowledge
Scientists estimate that 80 percent of life on Earth is still unknown to humanity. But as global temperatures rise, habitats shrink and food and water sources dry up, we're losing these species faster than we can discover them. AI naturalist Sara Beery reveals how the knowledge to study (and sa..
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
