Me personally? I'm no economic policy expert but they do exist. Some kind of carbon tax/credit, and cap and trade, seem to be popular recommendations among economists. The first step is to have the political will to make it happen. Admittedly, going by the last 30 years of denial and propaganda, it doesn't like we're ever going to achieve it. The denialists have won, I believe humanity is doomed. Our grandkids will curse our names.