PBS
Americans Waste Up To 40 Percent Of The Food They Produce
If food waste were a country, it would be the third-largest emitter of greenhouse gases behind China and the United States. NewsHour Weekend's Megan Thompson sat down with Elizabeth Balkan, director of food waste for the Natural...
PBS
Can seafood industry get Americans to eat local fish?
Off the coast of Cape Cod, Massachusetts, there's not much cod left, but there's plenty of dogfish. It's a creature most Americans have never heard of, much less consumed. Instead, Americans are eating imported tuna, salmon and shrimp,...
PBS
Could the Electoral college system ever change?
President-Elect Donald Trump captured the White House by winning the Electoral College, even as Hillary Clinton won about half a million votes more than Trump. In response, some are calling for a national popular vote to decide the...
Crash Course
War and Nation Building in Latin America: Crash Course World History 225
In which John Green teaches you about nation building and nationalism in Latin America. Sometimes, the nations of Latin America get compared to the nations of Europe, and are found wanting. This is kind of a silly comparison. The rise of...
TED Talks
TED: A climate solution where all sides can win | Ted Halstead
Why are we so deadlocked on climate, and what would it take to overcome the seemingly insurmountable barriers to progress? Policy entrepreneur TED Halstead proposes a transformative solution based on the conservative principles of free...
SciShow
What Fake Fragrances Teach Us About Sustainability
Humans love to make perfumes and fragrances from the weirdest sources, And to protect those sources, we sometimes come up with synthetic alternatives....which then create their own sets of environmental problems.
MinutePhysics
Every Force in Nature (Theory of Everything, Part III)
In which we explain economic equilibrium, how to make money from nothing, and every fundamental force in physics.
TED Talks
TED: A vision for sustainable energy in Africa | Chibeze Ezekiel
Africa needs new energy sources to fuel its development, but the continent should invest in renewable energy instead of cheap, polluting alternatives like coal, says climate inclusion activist Chibeze Ezekiel. He tells the story of how...
TED Talks
TED: How quinoa can help combat hunger and malnutrition | Cedric Habiyaremye
On a mission to create a hunger-free world, agricultural entrepreneur Cedric Habiyaremye makes the case for cultivating quinoa -- and other versatile, nutrient-rich grains -- in places experiencing malnutrition, like his native Rwanda....
TED Talks
TED: economic growth has stalled. Let's fix it | Dambisa Moyo
economic growth is the defining challenge of our time; without it, political and social instability rises, human progress stagnates and societies grow dimmer. But, says economist Dambisa Moyo, dogmatic capitalism isn't creating the...
TED Talks
TED: The bad math of the fossil fuel industry | Tzeporah Berman
We currently have enough fossil fuels to progressively transition off of them, says climate campaigner Tzeporah Berman, but the industry continues to expand oil, gas and coal production and exploration. With searing passion and...
SciShow
How Engineers Are Turning Wind into Protein Powder
Alternative energy is great, but our infrastructure isn't exactly equipped to handle it. So scientists are coming up with other ways to use it, including turning it into food.
TED Talks
Sangu Delle: In praise of macro -- yes, macro -- finance in Africa
In this short, provocative talk, financier Sangu Delle questions whether microfinance — small loans to small entrepreneurs -- is the best way to drive growth in developing countries. "We seem to be fixated on this romanticized idea that...
TED Talks
TED: A provocative way to finance the fight against climate change | Michael Metcalfe
Will we do whatever it takes to fight climate change? Back in 2008, following the global financial crisis, governments across the world adopted a "whatever it takes" commitment to monetary recovery, issuing $250 billion worth of...
TED Talks
Richard Ledgett: The NSA responds to Edward Snowden's TED Talk
After a surprise appearance by Edward Snowden at TED2014, Chris Anderson said: "If the NSA wants to respond, please do." And yes, they did. Appearing by video, NSA deputy director Richard Ledgett answers Anderson's questions about the...
TED Talks
TED: Inside the massive (and unregulated) world of surveillance tech | Sharon Weinberger
What is a weapon in the Information Age? From microscopic "smart dust" tracking devices to DNA-tracing tech and advanced facial recognition software, journalist Sharon Weinberger leads a hair-raising tour through the global, unregulated...
TED Talks
TED: Where on Earth will people live in the future? | Parag Khanna
From the return of nomadic living to a climate-disrupted world, author and global strategist Parag Khanna has some predictions for humanity. Get a fascinating glimpse at the future as he tackles an urgent question: Where on Earth will...
TED Talks
Ellen 't Hoen: Pool medical patents, save lives
Patenting a new drug helps finance its immense cost to develop -- but that same patent can put advanced treatments out of reach for sick people in developing nations, at deadly cost. Ellen 't Hoen talks about an elegant, working solution...
TED Talks
TED: How we can bring mental health support to refugees | Essam Daod
The global refugee crisis is a mental health catastrophe, leaving millions in need of psychological support to overcome the traumas of dislocation and conflict. To undo the damage, child psychiatrist and TED Fellow Essam Daod has been...
TED Talks
TED: The need for family reunification -- to make families whole again | Elizabeth Zion
I want all families to be made whole, to be reunified, to be together -- as is our right, says writer, poet and student Elizabeth Zion. In this profoundly moving talk, Zion shares the impacts of family separation, including her personal...
TED Talks
Sonaar Luthra: We need to track the world's water like we track the weather
We need a global weather service for water, says entrepreneur and TED Fellow Sonaar Luthra. In a talk about environmental accountability, Luthra shows how we could forecast water shortages and risks with a global data collection effort...
TED Talks
Ivonne Roman: How policewomen make communities safer
Less than 13 percent of police officers in the United States are women -- despite their proven effectiveness in diffusing violent situations and reducing the use of force. Drawing on more than two decades of experience as a police...
TED Talks
TED: How megacities are changing the map of the world | Parag Khanna
I want you to reimagine how life is organized on earth, says global strategist Parag Khanna. As our expanding cities grow ever more connected through transportation, energy and communications networks, we evolve from geography to what he...