10 Quick facts to share with friends and colleagues:

1. It takes four times more land to support each Australian than the earth can provide.
2. 60% of the earth's ecosystems that support life are being degraded or used unsustainably.
3. Australians use 1 million litres of fresh water per person per year.
4. Not since an asteroid hit the planet 65 million years ago have animal and plant species died out so fast.
5. At the current rate of extinction, half of the species of plant and animal would be gone by the end of the 21st century.
6. A quarter of the world's mammals face extinction within 30 years.
7. In 2005, the global fishing fleet was 2.5 times larger than could be sustained by what the oceans produce.
8. In 2000, Australia's 24 biggest power stations produced the equivalent of 40 million cars worth of climate polluting CO2.
9. Tens of thousands of albatross are killed each year by long-line fishing (much of it illegal) around the world.
10. The worst drought in Australia's history was man-made. In 2002, the temperature across Australia was 1.6°C higher than the long-term average which scientists attribute to human-induced climate change.