<human>:  What are the pros and cons of renewable energy sources?
<bot>: 
Pros of Renewable Energy Sources:
 • Renewable energy sources are abundant, do not emit pollutants and are friendly to the environment.
 • Renewable sources of energy also are virtually inexhaustible and are not subject to fluctuating fuel costs.
 • Renewable sources of energy, such as solar and wind, can provide more reliable and cost-competitive electricity over fossil fuels in many parts of the world.            2

Cons of Renewable Energy Sources:
 • One of the biggest drawbacks of renewable energy is that initial installation costs can be significantly higher than those of traditional energy sources.
 • Renewable energy sources also tend to be less reliable than traditional sources, since they depend on the weather patterns to generate power.
 • Renewable energy sources may require more land to be dedicated to the project than traditional energy sources, which can have an adverse effect on the environment.