Environment

1. Water Quality

1.1. Dumping waste in ocean

1.2. Contamination of water sources

1.2.1. Lack of good quality water

1.3. Marine life

2. Air Quality

2.1. Air pollution

2.1.1. Vehicles

2.1.2. Coal power plants

2.2. Smog

2.3. Acid rain

3. Life

3.1. Endangered species

3.2. Extinction

3.3. Loss of habitat

3.4. Animal slaughtering

4. Global Warming

4.1. Green house emission

4.1.1. Transportation

4.1.2. Coal power plants

4.1.3. Meat industry

4.2. Depleting ozone

4.3. Rising sea levels

4.3.1. Melting ice caps

4.3.2. Increase in volume due to temperature

4.4. Rising temperature

5. Land

5.1. Soil erossion

5.2. Growing population

5.3. Rising sea levels

5.4. Contamination of soil

5.5. Urban expansion

6. Food Supply

6.1. Genetically modified food

6.2. Food Scarcity

6.2.1. Land quality

6.3. Drought

6.4. Limited supply for growing population