The author said it would allow Indiana to use federal clean energy grants to fund natural gas and propane projects. But environmental groups have said that's unlikely — because most federal grant programs don’t define it that way.

Indiana nonprofits are unsure if — or how — some climate-friendly grants will move forward. President Trump’s executive order freezing funding from the Inflation Reduction Act and the bipartisan infrastructure law — as well as the lawsuits pushing back — have created a lot of uncertainty.

The Indiana Senate passed a bill Monday that would define natural gas and propane as clean energy sources. Senate Bill 178 now moves to the House for consideration.