On 16 January, we reported that the Senate Environmental and Public Works Committee would be marking up the Providing Reliable, Objective, Verifiable Emissions Intensity and Transparency (PROVE IT) Act. The committee passed that bill, which directs the U.S. Department of Energy (DOE) to compare the emissions intensity of specific goods and commodities in the U.S. to those same goods in other countries, including biofuels, fertilizer, natural gas, crude oil and refined products, so that a U.S. carbon tariff can be imposed.   This is in line with the Biden Administration’s consideration of such a tariff in 2021, and their agenda to introduce environmental standards into trade policy, which has brought new trade agreement nego...