Why skin disease is often misdiagnosed in darker skin tones | Jenna C. Lester

We negotiate all the time at work -- for raises, promotions, time off -- and we usually go into it like it's a battle. But it's not about dominating, says organizational psychologist Ruchi Sinha. It's about crafting a relationship, understanding your needs and the other person's. Her three key steps will help you master this essential skill.

For thousands of years, the Amazon rainforest has provided food, water and spiritual connection for its Indigenous inhabitants and the world. But the endless extraction of its natural resources by oil companies and others is destroying the lives of those who live there, says Waorani leader Nemonte Nenquimo, and threatening the overall stability of Earth's biosphere. In this powerful talk, she reminds us of the destruction that continues to happen to the world's largest tropical rainforest -- and demands respect for Mother Nature. "The forest is our teacher," she says. (Filmed in Ecuador by director Tom Laffay and associate producer Emily Wright, in collaboration with Amazon Frontlines. In Spanish with subtitles.)

What if we started treating parenting like the real work it is? Podcast host and CEO Angela Garbes details how working families have evolved -- and how companies haven't -- and gives insight into what parents really need from their colleagues and workplaces.

When it comes to big problems like climate change, we tend to focus on big solutions -- but many of the best ideas come from people on the ground, facing day-to-day conservation battles. Sharing her effort to protect the Leseur ecosystem in Indonesia (the last place on Earth where the Sumatran rhino, tiger, elephant and orangutan still roam together in the wild), TED Fellow and conservationist Farwiza Farhan explains the challenges women face on the front lines of forest preservation within patriarchal societies -- and the resilient, world-changing power they hold.

"How much more damage do we have to endure before we realize that it's cheaper to save this planet than to ruin it?" asks engineer and investor John Doerr. In conversation with Countdown cofounder Lindsay Levin, Doerr and systems innovator Ryan Panchadsaram lay out six big objectives that -- if pursued with speed and scale -- could transform society and get us to net-zero emissions by 2050. An action plan to solve the world's climate crisis, backed up by a proven system for setting goals for success.