Skip to main content

That time oxygen almost killed everything

1,906,942 Views

32 Questions Answered

Best of Web

Let’s Begin…

What if we told you that there was a time when oxygen almost wiped out all life on Earth? 3 billion years ago, when the world was a place you’d never recognize, too much of a good thing almost ruined everything for everybody.

What new atmospheric layer formed as a result of increased oxygen levels?

About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

  • Video created by PBS Eons
  • Lesson Plan created by Luka Seamus Wright