To love is to be brave | Kelly Corrigan

As a self-proclaimed radical street librarian, Storybook Maze makes books appear where they're scarce. Through initiatives like free, public book vending machines and street corner story times, she eliminates book deserts — or areas with limited access to literature — by making books accessible for children in underserved communities. (And in case you're wondering, she shares how you can become a radical street librarian, too.)

The Maasai people have lived sustainably off the savanna for centuries, raising cattle for sustenance and income. Climate activist Dorcas Naishorua paints a picture of how the climate crisis is threatening their way of life — and calls for local and international support as they're forced to adapt to a changing environment.

There's an invisible health threat right under our feet, says investigative journalist Yvette Cabrera. She digs into the pervasive problem of lead contamination in soil — a particular risk for children in cities — and shares her action plan to map urban soils and help create healthier communities.

How will AI improve our lives in the years to come? From its inception six decades ago to its recent exponential growth, futurist Ray Kurzweil highlights AI’s transformative impact on various fields and explains his prediction for the singularity: the point at which human intelligence merges with machine intelligence.

Would you swallow a micro-robot? In a gutsy demo, physician Vivek Kumbhari navigates Pillbot, a wireless, disposable robot swallowed onstage by engineer Alex Luebke, modeling how this technology can swiftly provide direct visualization of internal organs. Learn more about how micro-robots could move us past the age of invasive endoscopies and open up doors to more comfortable, affordable medical imaging. (This talk contains medical imagery.)

Agriculture fundamentally changed the way humans live — but at a cost, using up huge tracts of land and wreaking havoc on the environment, even as millions still go hungry. Entrepreneur and investor David Friedberg paints a picture of the evolution of agriculture and introduces a scientific breakthrough — "boosted breeding" — that might just transform how the world produces food. (This conversation was recorded live with head of TED Chris Anderson.)

 Each Sunday, TED shares an episode of another podcast we think you'll love, handpicked for you… by us. Today we're sharing a special episode of ReThinking with Adam Grant.Justin Trudeau has served as the Prime Minister of Canada since 2015. And there’s a lot to dig into from his years in office — and from his life before, as well. Adam sits down with him to discuss lessons learned about leadership. The Prime Minister opens up for the first time about his early struggles with impostor syndrome and how he maintains his motivation in the face of disapproval and criticism today. He also shares how he encourages people to speak truth to power, where his team is challenging him to improve right now, why he considered quitting, and what keeps him awake at night.  Get more ReThinking with Adam Grant wherever you get your podcasts.Transcripts for ReThinking are available at go.ted.com/RWAGscripts      

The nuclear family model may no longer be the norm in the US, but it's still the basis for social and economic benefits like health care, tax breaks and citizenship. Lawyer and LBGTQIA advocate Diana Adams believes that all families, regardless of biological relationship or legal marriage, are deserving of equal legal rights and recognition. They present a vision for how US laws can benefit all families -- from same-sex bonds to multi-parent partnerships -- and explain how a more inclusive definition of family could strengthen your relationships and community.

Ever had a hard time doing daily household tasks -- cooking, cleaning, laundry -- and felt like a terrible person for struggling in the first place? Therapist KC Davis is here to flip that negative internalized script with a simple yet perspective-shifting fact that may change your approach to life. Learn a gentler, more practical approach to mental health as Davis shares hard-won wisdom and helpful shortcuts on how to get by when you feel like you've barely got it together.

The way we raise animals is destructive to humans, animals and the environment, says cardiologist and entrepreneur Uma Valeti. He presents a solution that doesn't require you to give up your favorite protein-packed meals: cultivated meat, grown directly from animal cells. Reportedly some of the "most chicken-y chicken" you'll taste, Valeti envisions how such cultivated meat could save billions of animal lives, improve human health and help protect our planet.