TED Conversations » Topics

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• Debates

  

  The biggest threat to mankind. What will end the world as we know ?

  Started by Sina Elli, Tehran, Iran

  274 comments

  Closed

• Ideas

  

  We can't stop war; can we control it?

  Started by griffin tucker, Canberra, Australia

  5 comments

  Closed

• Ideas

  

  Save millions of trees per year by celebrating Xmas W/O a tree, or by renting Living Christmas Trees with their roots intact, NOT CUT TREES.

  Started by Michelle Rosenthal, Brooklyn, NY, United States

  4 comments

  Closed

• Ideas

  

  Pls. support TED Speaker Jessica Jackley's organization called kiva.org connecting people who need a small loan with people who can lend.

  Started by Michelle Rosenthal, Brooklyn, NY, United States

  1 comment

  Closed

• Questions

  

  What if learning, rigorous learning, was a part of everyday life? How would it change us, our communities, our countries, the world?

  Started by liz Tuohy, Englewood, CO, United States

  12 comments

  Closed

• Ideas

  

  Synthetically Pressurizing the Atmosphere to Create Large-Scale & Controllable Precipitation

  Started by Stephen Ly, San Diego, CA, United States

  3 comments

  Closed

• Questions

  

  How are you going to change the world?

  Started by Kris Temmerman, Genk, Belgium

  7 comments

  Closed