Ultimately we need policy to reduce GHG emissions. The carbon tax is attractive because it's proven that it's the most efficient way to reduce emissions with the broadest coverage to our economy. It isn't a "cash-grab." It's an attempt to build in the costs of pollution to get socially optimal levels of consumption for fossil fuels. The alternatives to the carbon tax are all much worse like command and control regulation (higher costs) or subsidies (ineffective and expensive).
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