Summary:
- Evidence shows that a sixth mass extinction is occurring now.
- Unlike previous mass extinctions, the sixth extinction is due to human actions.
- The present rate of extinction is between 100 and 100,000 species per year.
- In 100 years, we could lose more than half of Earth’s remaining species.
- The single biggest cause of extinction today is habitat loss.
- The decline in the numbers of large predators like sharks, lions and wolves is disrupting Earth's ecosystem in all kinds of unusual ways.
- There are steps you can take to help protect biodiversity.