Energies of the Future
By 2030 the physicist expects that we will have hot fusion reactors.
![](https://preprod.bigthink.com/wp-content/uploads/2011/02/origin-287.jpg?w=480&h=270&crop=1)
Every Wednesday, Michio Kaku will be answering reader questions about physics and futuristic science. If you have a question for Dr. Kaku, just post it in the comments section below and check back on Wednesdays to see if he answers it.
Today, Dr. Kaku addresses a question posed by Davis Tan: What future energy source will solve our energy crisis?