Ecological protection

1.

globalization

2.

acid rain

3.

air pollution

4.

global warming

5.

hazardous waste

6.

ozone depletion

7.

smog

8.

water pollution

9.

overpopulation

10.

rainforest destruction

11.

greenhouse effect

12.

gases

13.

atmosphere

14.

polar ice caps

15.

climate change

16.

species

17.

endangered

18.

extinct

19.

overfishing

20.

protecting the environment

21.

conservation organisations

22.

(nature) reserves

23.

organic food

24.

environmentally friendly
(ecologically sound)

25.

dispose of waste

26.

recycle

27.

fossil fuels

28.

reduce carbon footprint