Once considered the ugly duckling of environmental conservation, seagrass is emerging as a powerful tool for climate action. From drawing down carbon to filtering plastic pollution, marine scientist Carlos M. Duarte details the incredible things this oceanic hero does for our planet -- and shows ingenious ways he and his team are protecting and ...

Conservation champion and TED Fellow Adjany Costa is on a mission to empower Indigenous communities. Instead of imposing pre-designed policy and plans on local people, she says, conservation efforts should center those who know the land best, enabling them to tailor solutions to their unique environmental, social and economic realities. She pres...

Environmental challenges aren't for just one political party to deal with — everyone must work together to solve them, says conservation champion Danielle Butcher Franz. Drawing on her work with young conservatives mobilizing environmental action, she shares how bridging divides and embracing shared values is the only way to tackle one of the wo...

A leader in the study of the ecology and evolution of marine organisms, Jeremy Jackson is known for his deep understanding of geological time.

TED Fellow Alasdair Harris is a social entrepreneur and ocean conservationist working at the interface of marine protection and poverty alleviation.

Gowri Shankar educates Indians on the importance of the king cobra, a feared, maligned and now threatened reptile species.

Birder and ecologist Washington Wachira started the Youth Conservation Awareness Programme to nurture young environmental enthusiasts in Kenya.

Thomas Peschak strives to merge photojournalism and cutting edge science to create powerful media projects that tackle critical marine conservation issues.

Lucas Joppa is helping make business sustainable.

Dee Boersma considers penguins ocean sentinels, helping us understand the effects of pollution, overfishing and climate change on the marine environment.

Hindou Oumarou Ibrahim advocates for the inclusion of Indigenous peoples, along with their knowledge and traditions, in the global movement to fight climate change.

Kevin Njabo is coordinating the development of UCLA's newly established Congo Basin Institute (CBI) in Yaoundé, Cameroon.

In his native South Africa, Boyd Varty builds wildlife corridors to restore the environment and literacy centers to restore the human spirit.

Lian Pin Koh expands conservation efforts by championing the use of low-cost autonomous aerial vehicles.

David Blood is a founding and senior partner of Generation Investment Management, which focuses on long-term, environmentally and socially conscious projects.

Paleontologist Michael Archer is working to bring back his favorite extinct animal: the Tasmanian tiger.

Protecting the natural environment for future generations is one of Prince William's key priorities.

Chad Frischmann is working to get humanity to "drawdown," the point in time when the concentration of atmospheric greenhouse gases begins to decline on a year-to-year basis.

Florida-based photographer Mac Stone specializes in documenting the Everglades, an area he prizes for its wildlife and flora.

Mike Velings understands the potential for business to create durable solutions to complex world problems.

About this event: As the theme of TEDxCUHK 2017 annual conference, ‘Sound (un)heard’ will bring out ideas and avocations to the audience, especially the ones that are ‘soundless’. Minorities, environmental conservation, technologies, you name it. Together with the participants, we work to turn up the volume of issues people usually are not aware of, and to make u...

Stephen Palumbi studies the way humanity and ocean life interact and intertwine. His insights into our codependence offer ideas for protecting both the ocean and ourselves.

What if we could hear nature's ultrasonic communication -- and talk back? From a bat's shrill speech to a peacock's infrasound mating call, conservation technology researcher Karen Bakker takes us through a sound bath of animal noises that are far outside humanity's range of hearing, demonstrating how artificial intelligence has translated the i...

At Purpose, Jeremy Heimans strategizes how to harness new social, economic and technological models to build movements with impact.