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Animal Quote by James Hansen

“Several times in Earth's history, rapid global warming occurred, apparently spurred by amplifying feedbacks. In each case, more than half of plant and animal species became extinct. New species came into being over tens and hundreds of thousands of years. But these are time scales and generations…” quote by James Hansen
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“Several times in Earth's history, rapid global warming occurred, apparently spurred by amplifying feedbacks. In each case, more than half of plant and animal species became extinct. New species came into being over tens and hundreds of thousands of years. But these are time scales and generations that we cannot imagine.”

James Hansen

About This Quote

Source Lecture: Climate Change and Extinction, James Hansen, 2010

Rapid warming events cause massive extinctions, with new species emerging over geological timescales beyond human imagination.

In simple terms: Climate shifts erase many species, creating new ones over eons.

Key Takeaway

Recognize long‑term ecological impacts.

Themes

environment extinction evolution timescales

Mood

urgent thoughtful

Type

educational activist

When to use this quote

  • conservation planning
  • policy making
  • educational outreach
  • research
  • public communication

Key Concepts

feedback loops biodiversity loss geological epochs

Questions to Reflect On

  • How can we make deep‑time changes feel immediate?
  • What policies address slow‑moving crises?
A Different Perspective

Human perception struggles with vast timescales, hindering urgent action.

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