> <i>"draft legislation [...] directs the Treasury Department and the Environmental Protection Agency to identify the companies that released the most greenhouse gases into the atmosphere from 2000 to 2019 and assess a fee based on the amounts they emitted</i><p>Seems pretty reasonable to retroactively tax previously untaxed externalities.<p>By 2000, the science was pretty conclusive. If fossil fuel companies' reaction was full-steam-ahead, they deserve what they get.<p>That said, the revenue generated should <i>definitely</i> be used to fund climate mitigation and backstop unfunded insurance shortfalls. I.e. costs directly caused by the profits made.<p>Also, cited in article as an example of work to base such a decision off of, Climate Accountability's "Carbon Majors Report": <a href="https://climateaccountability.org/carbonmajors.html" rel="nofollow">https://climateaccountability.org/carbonmajors.html</a> (attempts to quantify emissions by company)