If you have a retirement fund it is highly likely you are funding the oil industry that is killing our world and stealing your wealth.
A great way to un-fund fossil fuels and in exchange fund clean energy instead is to sit down with a like-minded financial planner and divest from any investments that include fossil fuel companies or their subsidiaries.
Then take that investment and place it in clean energy funds. They exist and are easy to find.
Here is an event in San Francisco about the city divesting out of fossil fuels: https://www.facebook.com/events/489024287831395/
Do your research and fund what helps you not what is killing you.