Of all the problems facing humanity, which should we focus on solving first? In a compelling talk about how to make the world better, moral philosopher Will MacAskill provides a framework for answering this question based on the...

We're heading for a world population of 10 billion people -- but what will we all eat? Lisa Dyson rediscovered an idea developed by NASA in the 1960s for deep-space travel, and it could be a key to reinventing how we grow food.

Nobody really knows how much it would cost to avoid the worst impacts of climate change. Yet historian Yuval Noah Harari's analysis, based on the work of scientists and economists, indicates that humanity might avert catastrophe by...

Sheryl WuDunn's book "Half the Sky" investigates the oppression of women globally. Her stories shock. Only when women in developing countries have equal access to education and economic opportunity will we be using all our human resources.

In which John Green teaches you about war! Specifically, John talks about whether humanity is naturally warlike, hard-wired to kill, or if perhaps war is a cultural construct. John will talk about the Hobbes versus Rousseau debate, the...

Ideas can and do change the world, says historian Rutger Bregman, sharing his case for a provocative one: guaranteed basic income. Learn more about the idea's 500-year history and a forgotten modern experiment where it actually worked --...

If you want to build a business that lasts, there may be no better place to look for inspiration than your own immune system. Join strategist Martin Reeves as he shares startling statistics about shrinking corporate life spans and...

As the world's cities undergo explosive growth, inequality is intensifying. Wealthy neighborhoods and impoverished slums grow side by side, the gap between them widening. In this eye-opening talk, architect Teddy Cruz asks us to rethink...

Organized crime operates across national borders -- to keep up, investigative journalists need to do the same. TED Fellow Bektour Iskender gives the inside scoop on his efforts to unveil secret, insidious operations in his home country...

The UN's Intergovernmental Panel on Climate Change released the final part of its sixth assessment report. In it, they steer away from the gloom and doom and remind us of a future that's still remarkably possible.

Published scientific studies can motivate research, inspire products, and inform policy. However, recent studies that examined dozens of published pharmaceutical papers managed to replicate the results of less than 25% of them - and...

Feeling safe is a human right -- but in many African countries, colonial-era laws make it dangerous for LGBTQIA+ people to gather and share their sexual orientation, gender identity or gender expression. Creating a space that leaves no...

Researcher Hans Rosling uses his cool data tools to show how countries are pulling themselves out of poverty. He demos Dollar Street, comparing households of varying income levels worldwide. Then he does something really amazing.

Public libraries have always been about more than just books -- and their mission of community support has taken on new urgency during the current opioid epidemic. After witnessing overdoses at her library in Philadelphia, Chera Kowalski...

Can geography save your life in case of, say, a zombie apocalypse? Understanding the push and pull factors that create geographic movement -- or how people, resources, and even ideas travel -- might help you determine the location that's...

Hank talks with MacArthur Fellow Dr. Rebecca Richards-Kortum of Rice University who co-founded Beyond Traditional Borders: An interdisciplinary undergrad curriculum focused on solutions to global health problems.

This week on SciShow news Hank explains what Curiosity has found, . . .water on Mars!

There are a lot of resources given by nature for free -- all we need is our sensitivity to see them and our creativity to use them, says architect Anna Heringer. Heringer uses low-tech materials like mud and bamboo to create structures...

We’re all susceptible to infectious disease of some kind or other, but not everyone is equally likely to be the victim of an outbreak. The fact is, inequalities both between and within communities mean that some people are at higher risk...

What do you think of people in poverty? Maybe what Jessica Jackley once did: "they" need "our" help, in the form of a few coins in a jar. The co-founder of Kiva.org talks about how her attitude changed -- and how her work with microloans...

The competitive exclusion principle predicts that there would just be a few species of plankton, but instead there are thousands.

What is altruism? Put simply, it's the wish that other people may be happy. And, says Matthieu Ricard, a happiness researcher and a Buddhist monk, altruism is also a great lens for making decisions, both for the short and long term, in...

A private company has been approved to land on the moon!

How do you raise money to get an idea off the ground, support a community, or help change the world? Take a crash course on the secret art of successful fundraising with development strategist Kara Logan Berlin as she shows how you can...