Environment

A natural disaster; there is too much water:

Cutting down entire forests.

A natural disaster; there is no rain for a long period.

When individuals/factories let harmful chemicals in the air.

We need to reduce our carbon...

This is what people should do with the waste (after collecting it separately).

This happened in 1986: ... explosion in Chernobyl

With no death toll.

A material which can cause pollution.

The occurance that the Earth is getting hotter and hotter.