A long-term changes in the world’s weather, in particular, the fact that it is believed to be getting warmer as a result of human activity.
climate change
A gas that is produced when particular fuels are burnt, or when people or animals breathe out.
carbon dioxide/CO2
Someone who has studied science for a long time and works in science.
scientist
Dirty in a dangerous way.
polluted
A large fire that spreads uncontrollably.
wildfire
Natural materials such as coal, fertile land, etc, that can be used by man.
natural resources
