Season 2 Episode
- Season 2 Rethinking Civilization
- Season 2 Money & Debt
- Season 2 Disease!
- Season 2 War & Human Nature
- Season 2 War and Civilization
- Season 2 Climate Change, Chaos, and The Little Ice Age
- Season 2 Humans and Energy
- Season 2 Drought and Famine
- Season 2 How World War I Started
- Season 2 Who Started World War I
- Season 2 The End of Civilization (In the Bronze Age)
- Season 2 The Rise of the West and Historical Methodology
- Season 2 Asian Responses to Imperialism
- Season 2 The Railroad Journey and the Industrial Revolution
- Season 2 Population, Sustainability, and Malthus
- Season 2 Islam and Politics
- Season 2 The Mughal Empire and Historical Reputation
- Season 2 Luther and the Protestant Reformation
- Season 2 Charles V and the Holy Roman Empire
- Season 2 World War II, A War for Resources
- Season 2 Congo and Africa's World War
- Season 2 Water and Classical Civilizations
- Season 2 Conflict in Israel and Palestine
- Season 2 The Vikings!
- Season 2 War and Nation Building in Latin America
- Season 2 Iran's Revolutions
- Season 2 Japan in the Heian Period and Cultural History
- Season 2 Nonviolence and Peace Movements
- Season 2 Capitalism and the Dutch East India Company
- Season 2 Democracy, Authoritarian Capitalism, and China
Crash Course World History - Season 2 Episode 15 Population, Sustainability, and Malthus
6.70 12 minutes In which John Green teaches you about population. So, how many people can reasonably live on the Earth? Thomas Malthus got it totally wrong in the 19th century, but for some reason, he keeps coming up when we talk about population. In 1800, the human population of the Earth passed 1 billion, and Thomas Malthus posited that growth had hit its ceiling, and the population would level off and stop growing. He was totally right. Just kidding, he was totally wrong! There are like 7 billion people on the planet now! John will teach a little about how Malthus made his calculations, and explain how Malthus came up with the wrong answer. As is often the case, it has to do with making projections based on faulty assumptions. Man, people do that a lot.
