1) The hidden history found in your teeth | Carolyn Freiwald 2) Is math discovered or invented? - Jeff Dekofsky 3) How you can help save the monarch butterfly -- and the planet | Mary Ellen Hannibal 4) What did people do before anesthesia? | Sally Frampton 5) How kids can help design cities | Mara Mintzer 6) Want to know if you're pregnant? Use this frog | Carly Anne York
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1) The hidden history found in your teeth | Carolyn Freiwald 2) Is math discovered or invented? - Jeff Dekofsky 3) How you can help save the monarch butterfly -- and the planet | Mary Ellen Hannibal 4) What did people do before anesthesia? | Sally Frampton 5) How kids can help design cities | Mara Mintzer 6) Want to know if you're pregnant? Use this frog | Carly Anne York
1) How shocking events can spark positive change | Naomi Klein 2) 3 easy steps to build a real utopia | Joseph Lacey 3) The business benefits of doing good | Wendy Woods 4) Use your voice, vote and wallet for climate action | Halla Tómasdóttir
1) Why you should disappoint your parents | Desiree Akhavan 2) How to increase your happiness | TED-Ed 3) The political power of being a good neighbor | Michael Tubbs 4) How to make faster decisions | Patrick McGinnis 5) The case for having kids | Wajahat Ali
1) How generational stereotypes hold us back at work | Leah Georges 2) How we can face the future without fear, together | Rabbi Lord Jonathan Sacks 3) How to break through fear and become a leader | Valerie Montgomery Rice 4) How nationalism and globalism can coexist | Wanis Kabbaj
1) A comedian's take on how to save democracy | Jordan Klepper 2) Democracy requires disagreement. Here's how to do it better | Bret Stephens and Yordanos Eyoel 3) The sibling rivalry that divided a town | Jay Van Bavel and Dominic Packer 4) How to spot authoritarianism — and choose democracy | Ian Bassin 5) The one question every aspiring leader needs to ask | Constance Hockaday
1) What's in the air you breathe? | Amy Hrdina and Jesse Kroll 2) How to transform your climate concern into action | Jane Fonda 3) The last living members of an extinct species | Jan Stejskal 4) We actually have a shot at stopping the climate crisis | Asmeret Asefaw Berhe 5) What's the best fuel for your car? | TED-Ed 6) How can we escape soaring energy bills? Stop using fossil fuels | Tessa Khan
1) What the fossil fuel industry doesn't want you to know | Al Gore 2) An extreme weather report from America's weatherman | Al Roker 3) The wildly complex anatomy of a sneaker 4) A new social contract for global climate justice | Huma Yusuf
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