What’s a marine biologist doing talking about world hunger? Well, says Jackie Savitz, fixing the world’s oceans might just help to feed the planet’s billion hungriest people. In an eye-opening talk, Savitz tells us what’s really going on in our global fisheries right now — it’s not good — and offers smart suggestions of how we can help them heal, while making more food for all.
After a traumatic brain injury, it sometimes happens that the brain can repair itself, building new brain cells to replace damaged ones. But the repair doesn’t happen quickly enough to allow recovery from degenerative conditions like motor neuron disease (also known as Lou Gehrig’s disease or ALS). Siddharthan Chandran walks through some new techniques using special stem cells that could allow the damaged brain to rebuild faster.
Drones are popularly associated with American air strikes on civilians and thus have a negative reputation. The technology underlying the drones can be used for good though. One example of a good use of drones is for aerial surveillance of plants and animals in hard to access/expensive areas.
What are our forests really made of? From the air, ecologist Greg Asner uses a spectrometer and high-powered lasers to map nature in meticulous kaleidoscopic 3D detail — what he calls “a very high-tech accounting system” of carbon. In this fascinating talk, Asner gives a clear message: To save our ecosystems, we need more data, gathered in new ways.
Every company ought to behave and operate in a sustainable way at all levels of operation. There is an obvious environmental argument for doing this, but some people don’t initially see the economic value. In this TED talk the economic efficiencies of sustainable manufacturing, distribution, and marketing are explored.