More taxes? C'mon! As Clinton famously said, "It's the economy, stupid!" There is NO valid and agreed upon scientific evidence that "greenhouse gases" need to be reduced! And, the greatest greenhouse gas, much greater in effect than CO2, is methane. Can we train the animals that produce meat, the cows that produce milk, and the chickens that produce eggs to constrain their level of flatulence, or reduce their manure output? Ridiculous! you say, and so is the concept of such taxes.
I think the government should add a one dollar per cigarette filter refund charge. This would keep tens of thousands of tons of cancer causing compounds out of our ground and ground water. The govt subsidizes tobacco growers so maybe some of the cash generated could replace our tax money spent to do that. Cow farts are less dangerous than cancer causing compounds in tobacco smoke and the remains of butts.
Such a tax would do nothing to reduce greenhouse gases, and would drive up the cost of food. Milk and eggs are used for more than breakfast.