A new energy policy simulator developed by San Francisco-based Energy Innovation models the greenhouse gas reduction potential of 50 energy and climate policy choices through 2030—including their interactions and synergies.

The simulator “is a responsive, thought-provoking way to understand what kind of system would reduce U.S. greenhouse gas emissions, how much it might cost, and which individual energy policies really move the needle,” Bloomberg reports. “For professionals in the energy and climate wars? Forget about it. The simulator might as well be Minecraft crossed with Angry Birds.”

“Playing around with the tool, one thing becomes clear: There’s no high-efficiency bullet train to energy utopia. Building a 21st-century energy system will take a lot of some things and a little bit of many others,” Roston writes.

“What’s interesting is that the most politically explosive policy goals—renewable subsidies, carbon taxes, gas-guzzler fees—probably can’t meet America’s commitments on their own. The recommended scenario includes many of the usual prescriptions. as well as such understated policies as more power grid transmission, reforestation, and HVAC retrofits.”