Climate change

4. when polar ___ melts, sea levels rise
5. the primary source of heat and energy for the whole planet; gets trapped by greenhouse gases
6. uncontrolled forest fire, highly destructive and becoming more common
9. climate change is increasing the risk and strength of natural _______
10. energy source that we should stop using
11. _____ dioxide (CO2) is the most common greenhouse gas
12. rapid climate _____ is the biggest problem facing humanity today
14. we need to find different ways to get this; usually in the form of electricity

1. natural disaster that affects coastal communities in warm and wet areas; a hurricane is one
2. transportation machines
3. the ____ supply chain is important to keep people fed, but creates lots of emissions
7. too much can cause floods, too little can cause droughts
8. lack of rain, leading to dry conditions
13. the planet is being warmed by the ______ effect