For both environmental and economic reasons, a carbon tax would be superior to the current patchwork of subsidies and regulatory law (standards, bans, caps, quotas etc.) which characterises climate policy. However, the tax has a key disadvantage: while it sets a price for carbon emissions, it does not set a cap. That is why emissions trading is even superior to a carbon tax. Despite the convincing advantages of market-based in-struments, a fundamental re-orientation of German and European climate policy unfortunately appears unlikely. Instead, existing instruments will probably be adapted again and again once their negative side effects become too obvious. This will make climate policy less efficient than it could be and more expensive than necessary.
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