TED Talks Daily

The fossil fuel industry knows how to stop global warming, but they're waiting for someone else to pay, says climate science scholar Myles Allen. Instead of a total ban on carbon-emitting fuels, Allen puts forth a bold plan for oil and gas companies to progressively decarbonize themselves and sequester CO2 deep in the earth, with the aim of reaching net-zero emissions by 2050 and creating a carbon dioxide disposal industry that works for everyone.

India has a historic opportunity to power its industrialization with clean energy -- and its energy choices will make or break the world's fight against climate change, says clean energy executive, physicist and author Varun Sivaram. Bringing on-the-ground experience as CTO of India's largest renewable energy company, Sivaram proposes a plan for India to achieve three herculean feats, all at the same time -- and reimagine its economy with renewable energy at its heart.

Yvonne Aki-Sawyerr, mayor of Freetown, Sierra Leone, is on a mission to plant a million trees over the next two years, increasing vegetation in her city by fifty percent while shoring up eroding riverbanks and increasing biodiversity. "This isn't just about planting trees; it's about growing trees, and it's about ensuring that each one of us is part of the process," she says. "A million trees is our city's small contribution to increasing the much-needed global carbon sink."

Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the services they need to live, learn and thrive within their immediate vicinity -- and shares ideas for making urban areas adapt to humans, not the other way around.

Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the services they need to live, learn and thrive within their immediate vicinity -- and shares ideas for making urban areas adapt to humans, not the other way around.

Comedian Aparna Nancherla loves to take out the trash. In this funny and sharp meditation on garbage -- "the stuff that our modern, consumerist, carbon-powered culture makes us buy endlessly, and often for no reason" -- she shares thoughts on how to use less in a world that's choking on ever-larger piles of waste.

In 2019, Amazon signed the Climate Pledge, a commitment to become a net-zero carbon business by 2040. Dave Clark, Amazon's chief of consumer retail, and Kara Hurst, head of the company's sustainability efforts, sit down with entrepreneur and activist Lindsay Levin to discuss how the company is planning to reduce its carbon footprint across all aspects of business -- while inviting other companies to join them in this transformation.

How do we tell stories of humanity and nature at a time when our planet is burning? Novelist Elif Shafak invites us to listen to the trees, whose experience of time, stillness and impermanence is utterly different from our own. "Hidden inside [their] story is the past and the future of humanity," she says.

"Business is screwed if we don't fix climate change," says economist Rebecca Henderson. In this bold talk, she describes how unchecked capitalism destabilizes the environment and harms human health -- and makes the case for companies to step up and help fix the climate crisis they're causing. Hear what a reimagined capitalism, in which companies pay for the climate damage they cause, could look like.

Known for big, attention-grabbing installations -- like his four towering waterfalls in New York's East River -- Olafur Eliasson has scaled down his latest project, Earth Speakr: an art platform for kids designed to spur budding climate activists to lead discussions on nature, conservation, pollution and more.