TED-Ed: What would happen if every human suddenly disappeared? - Dan Kwartler

The video explores the hypothetical scenario of human disappearance and its impact on Earth. Initially, infrastructure fails, leading to fires and power outages. Over time, nature reclaims urban areas, and biodiversity shifts as plants and animals adapt. The Earth's climate gradually recovers from human-induced changes, but human artifacts persist for millions of years. The video suggests that understanding a world without humans can offer insights into our current impact on the planet.

What immediate effects would occur in oil refineries if humans suddenly disappeared?

How would urban infrastructure, such as drainage systems, be affected within the first week after human disappearance?

Describe the changes that would occur to sidewalks and streets within 20 years after humans are gone.

What types of plants would dominate urban areas in a post-human world?

How would animal populations adapt in the absence of humans?

What long-term environmental changes would occur to Earth's climate after humans are gone?

In what ways would humanity's legacy persist even after millions of years?