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In 2020, China's President Xi Jinping pledged that China would both peak its emissions by 2030 and achieve net-zero emissions by 2060 -- a change that will require action at an unheard-of scale and speed. Can the country actually achieve this ambitious vision? In this forward-looking talk, environmental journalist and analyst Hongqiao Liu explores what the world's largest carbon emitter (and second-largest economy) will need to do to get there.

How will the rise of artificial intelligence change our world? Former head of Google China Kai-Fu Lee and science-fiction writer Chen Qiufan (aka Stanley Chan) set out to answer this question in their new book "AI 2041: Ten Visions for the Future." In this wide-ranging discussion, they imagine different possibilities -- both from the imaginative lens of science fiction and with a perspective on what is actually plausible. (This conversation, hosted by TED technology curator Simone Ross, was part of a TED Membership event. Visit ted.com/membership to become a TED Member.)

We're losing animal and plant species at such a swift, unprecedented rate that it's nearly impossible to keep up. Computational biologist Tanya Berger-Wolf demonstrates how harnessing the power of artificial intelligence and one of the internet's biggest resources -- public images and video -- supports the crucial collection of data to save threatened wildlife. Learn how your everyday photos, alongside the work of passionate citizen scientists, could help drive conservation decisions, and slow or even reverse damage to biodiversity worldwide.

Work that's dictated by a fixed schedule, place and job description doesn't make sense anymore, says leadership expert Debbie Lovich. In light of the cultural shift towards remote work sparked by the pandemic, Lovich gives three essential tips to leaders so employees can keep their autonomy (while remaining productive), companies can let go of rigid bureaucracy and we can all reshape work to better fit our lives.

Childcare needs a transformation -- but rather than investing billions in new buildings and schools, what if we could unlock the potential of people already nearby? Entrepreneur Chris Bennett offers an innovative way to tackle the shortage of childcare worldwide and connect families to safe, affordable and high-quality options in their own communities.

To fight climate change, we need to clean up the global electricity system by replacing fossil fuel power plants with clean generation -- right? Climate author Solomon Goldstein-Rose thinks we need to do much more than that. Replacement isn't enough, he explains in this compelling talk: we need to rapidly develop a new global system capable of producing 12 times the amount of clean electricity we generate today. He shares four reasons why we need that expansion -- first, to electrify everything in all parts of the world (not just the wealthy ones) -- as well as some intriguing ideas for how we can get there.