Renewable and non-renewable energy

1. Renewable Energy

1.1. Solar power

1.2. Wind power

1.3. wave power

1.4. sustainability

2. Non-renewable Energy

2.1. Coal

2.2. nuclear power

2.3. green house gas emissions

2.4. unsustainable

2.5. CO2 emissions

2.6. global warming/climate change

2.7. ozone layer