In which John Green teaches you about the Holy Roman Empire by teaching you about Charles V. Charles Hapsburg was the holy Roman Emperor, but he was also the King of Spain. And the King of Germany. And the King of Italy and the Lord of...

In which John Green teaches you about Imperialism, but not from the perspective of the colonizers. This week John looks at some Asian perspectives on Imperialism, specifically writers from countries that were colonized by European...

In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John...

In which John Green talks about the methods of writing history by looking at some of the ways that history has been written about the rise of the West. But first he has to tell you what the West is. And then he has to explain the Rise of...

We've been talking a lot about kings, and queens, and wars, and religious upheaval for most of this series, but let's take a moment to zoom out, and look at the ways that individuals' lives were changing in the time span we've covered so...

In which John Green teaches you about how Islam has interacted with politics during it's history, and how it continues to do so today. Islamist movements are in the news a lot lately, but how did that happen. John will point out that...

What if every dollar you spend today could save you 10 dollars tomorrow? Development expert Harjeet Singh reveals how climate solutions like floating farms and “sponge cities” that absorb floodwater aren’t just clever adaptations —...

In this video Paul Andersen describes the pros and cons of industrial agriculture including: monocropping, irrigation, and the use of pesticides, fertilizers, and GMOs.

Palm oil is in nearly every commodity you use — food, shampoo, makeup and more — but harvesting this essential material has contributed to the destruction of millions of hectares of forests globally. Sustainability leader Andika...

Could the key to a sustainable food system already be growing in the world's farms? Plant scientist Giles E.D. Oldroyd explores how a special quirk of soybean plants allows them to naturally partner with networks of fungi and bacteria to...

As of 2022, humans have deforested 17% of the Amazon, and scientists warn that we may be approaching a tipping point. It’s like removing bricks from a house: take a few and the house remains standing; remove too many and the whole thing...

Over his decades of farming and ranching, Gabe Brown has noticed a troubling trend: the conventional farming techniques he used were degrading the soil and harming nature. He shares how his family farm turned things around by adopting...

What does a warming planet mean for the foods you love? Hosting a dinner party that features a menu of foods that could disappear within our lifetimes, culinary entrepreneur Sam Kass invites us to chew on the reality of climate change by...

Here's a wild stat: nearly one-third of the world's food production goes to waste each year, a major contributor to the climate crisis. Farmer and UN climate champion Gonzalo Muñoz sheds light on the international negotiations aimed at...

Global food production - from meat to grains - accounts for a third of all greenhouse gas emissions, says sustainability scientist Jonathan Foley. He presents a portfolio of data-backed solutions to build a better food system world-wide,...

Can strawberries grown inside a building taste sweeter than those grown in a field? Farming entrepreneur Hiroki Koga explores how his team is combining solar-powered vertical farms with AI, robotics and indoor bee colonies to grow...

Why aren't restaurants part of the climate solution? This question inspired chef Anthony Myint to go from opening buzzy pop-ups to pushing for a shift to regenerative farming practices in the food system. He explains how it didn't go the...

Africa's smallholder farmers feed millions of people and uplift economies, yet they often lack the basic resources needed to thrive, says agricultural scientist and policymaker Agnes Kalibata. She outlines how to empower these farmers...

Farm labor is hot, backbreaking and dangerous work. To protect workers from extreme heat and workplace exploitation, farmworker Gerardo Reyes Chávez has teamed up with farm manager Jon Esformes for a unique partnership. Learn how their...

Agriculture fundamentally changed the way humans live — but at a cost, using up huge tracts of land and wreaking havoc on the environment, even as millions still go hungry. Entrepreneur and investor David Friedberg paints a picture of...

The Maasai people have lived sustainably off the savanna for centuries, raising cattle for sustenance and income. Climate activist Dorcas Naishorua paints a picture of how the climate crisis is threatening their way of life — and calls...

The way we raise animals is destructive to humans, animals and the environment, says cardiologist and entrepreneur Uma Valeti. He presents a solution that doesn't require you to give up your favorite protein-packed meals: cultivated...

How does a biscuit make it from the farm to your plate? Sustainable development leader Aruna Rangachar Pohl unpacks the long journey of one of India's most beloved snacks, revealing how the current industrial farming model is eating the...

Louise Mabulo grew up on seemingly strange farming tips from her parents and grandparents — like planting crops during a full moon or burying a rock beneath them. Now a farmer and climate activist herself, she sees how these practical...