1. How many of the 18 recognised species of penguin in the world are considered endangered and therefore at risk of extinction?

2. What animal is considered a key indicator of environmental health in wetlands?

3. In what year did the global population reach 7 billion?

4. Which of these cities regularly tops the list for the one which has the worst air pollution in the world?

5. Which ocean is warming the fastest due to climate change?

6. How many football fields size of rainforest are destroyed every minute?

7. Which endangered species is often called the “gardener of the forest” because it disperses seeds?

8. On average, how many species inhabiting our rainforests are lost to our planet forever, every day?

9. As of 2025, approximately what percentage of global energy consumption comes from fossil fuels?

10. Trees are vital for life on earth – for example, the annual oxygen requirements for how many people can be met by one mature tree?