This source describes how renewable energy is doing today, and predictions of how it will do in the future. The author speaks in a motivational tone, while siting most of their sources throughout the article. It also mentions the actual finances behind renewable energy, which is a large concern for many people. This source describes a large amount of how renewable energy is perceived, and is a great source.

This source includes many aspects of what our world may look like in the future. It also includes its sources so that we know it is reliable. From environment to new technology, there is a wide variety of information on this website. This site includes multimedia to make understanding of the material more broad for the reader. It appears to be a great resource.

This site is from MIT, it talks about their nuclear energy program and other people's ideas. It also talks about their nuclear fusion reactor. Their reactor is the same as the one in the book, this makes it a useful site to cross reference the information in the book. This site is reliable because it comes from MIT, a university known for its science and engineering programs.

This site lists some possibilities for renewable energy in the future. It gives predictions for 50 years from now. This site is reliable because "big think", the website it is on, is a reliable website for research and technology and cites its own sources.

This article shows and cites predictions from scientists about the future. It is reliable due to these citations, and contains a wide variety of information. From fusion and fission to governmental predictions, this website has just about everything.

This website has a variety of stories and articles about the future of energy by many different authors. These articles include interviews, pictures, and proof of reliability embedded within the stories and citations.