Renewable energy is rising, thanks to technology developments that are cutting costs and bringing the promise of a clean energy economy closer to reality. In the United States, solar and wind energy are breaking records and are being integrated into the national electrical system without jeopardising reliability.
As a result, renewables are gradually displacing "dirty" fossil fuels in the electricity industry, resulting in fewer carbon and other types of pollution emissions. However, not all "renewable" energy sources are favourable to the environment. When considering the influence on wildlife, climate change, and other issues, biomass and huge hydroelectric dams present tough decisions.


