Demonstrate the differences
Wizards basically believe that science and technology, properly applied, can let us produce our way out of our dilemmas. Prophets believe that there are natural limits, and we transgress these limits at our peril.
Offer a money-back guarantee
Their recommendations are kind of the opposite of each other. One is saying, “Be smart, make more, and that way everyone can win.” The other is saying, “Hunker down, conserve, obey the rules, otherwise everyone is going to lose.”
Test your offer and price, and be creative.
For wizards the answer is basically to stick with the same system we have now but with cleaner energy. Ideally with nuclear power because it has the smallest footprint of any low-carbon source, but you could also have giant concentrated solar plants and that sort of thing.