As the world feels the dire effects of climate change, many prominent scientists are working to provide safe, efficient, and clean alternative fuels and energies. As they scramble to find ways to make solar and wind farms cheaper and more efficient, there are others who know that a safe, relatively cheap, efficient, and clean energy already exists: nuclear power. The only by-product of nuclear energy is nuclear waste, which means there are no greenhouse gases being emitted by the plants. Most nuclear waste is in the form of spent fuel rods that can be stored relatively easily.
There have been many suggestions as to what to do with the waste, including storing it in a mountain and letting it naturally decay in underground bunkers. A new theory, however, could provide an easy way to produce significantly less nuclear waste. A fast reactor can be used to destroy the longest-lived nuclear waste, transforming it from waste that can take millennia to decay into waste that only requires a few centuries to completely decay. It also produces far less radioactive waste altogether. This means that the waste produced can be easily stored underground and will be gone in a few hundred years. Compared to the nasty byproducts of fossil fuels and even the toxic chemicals from producing solar panels, the nuclear waste is nothing.
source: The Trinity Tripod