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The loss of polar ice may seem like an abstract concern, but it’s one that will affect all of us, no matter where we live, says glaciologist and TED Fellow Michele Koppes.

Romantic love is great, but anyone who has had a broken heart knows that it is not enough to form a lasting relationship.

Juliana Rotich is a tech-world pioneer, cofounder of Ushahidi and an advisor to Nairobi’s iHub. She describes life in Kenya’s capital city.

The great evil of American slavery wasn’t involuntary servitude, says public-interest lawyer Bryan Stevenson. It was the ideology of white supremacy used to justify it — and it’s an ugly part of our history we need to acknowledge.

Sexual changes in aging are normal and are influenced by several factors. Understanding these changes is critical to promoting sexual well-being in an aging population.

Bioengineering professor Manu Prakash brought the world a 50-cent microscope. Now he’s created more cheap public health tools, including a paper centrifuge and a mosquito identifier. And he’s just getting started.

By using the first day as a time for people to tap into their best selves — and not just fill out paperwork — companies could ease their stress and bring out their full potential, says business school professor Daniel Cable.

When Brenda Romero wants to understand something complicated, she makes a game. Her two latest games explore the rules of inequality.

As we look ahead to a world with less work, or even no work, we can take control — by using our hours with greater meaning and purpose, says business thinker Tim Leberecht.

At this conservation center in central China, captive-born pandas go through a gradual, carefully monitored process to prepare them to live in their natural habitat. Photographer Ami Vitale shows how they go from wriggly newborns to independent adventurers.