Global Warming
Just an initial demo map, so that you don't start with an empty map list ...
Global Warming
by Miguel Catolico
1. Causes
1.1. Air pollution
1.1.1. Burning of fossil fuels
1.1.2. Transportation
1.1.3. Waste
1.2. Ozone layer hole
1.3. Deforestation
1.3.1. Less trees
2. Contributions to help
2.1. Use public transport
2.2. Plant more trees
2.3. Don't waste electricity
2.4. Recycle
3. Greenhouse gases
3.1. Types of greenhouse gases
3.1.1. CO2
3.1.2. CH4
3.1.3. N2O
3.1.4. CFC-11
3.1.5. CFC-12
3.1.6. CFC-113
3.1.7. HCFC-22
3.1.8. HCFC-142b
3.1.9. CH3CCl3
3.1.10. CCl4
3.1.11. HFC-125
3.1.12. HFC-134a
3.1.13. HFC-152a
3.1.14. HFC-23
3.1.15. SF6
3.1.16. CF4
3.1.17. C2F6