WildEarth Guardians v. Zinke – How Shoud GHG Emissions be Estimated?

On March 19, 2019, the United States District Court for the District of Columbia issued a ruling blocking, at least temporarily, approved oil and gas drilling on approximately 300,000 acres in Wyoming. The case, WildEarth Guardians v. Zinke, et al., 16-1724 (D.C. Cir.), was brought by two advocacy groups, Wildlife Guardians and Physicians for Social Responsibility, which alleged that the Bureau of Land Management (BLM) violated federal law by not sufficiently considering climate change when authorizing oil and gas leasing on federal land in Wyoming, Utah, and Colorado.
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The Social Cost of Carbon — A Crucially Important Number Few Have Heard of and its Potential Impact on Environmental Regulations

There is a number few have heard of underlying many environmental regulations that are directly related to climate change — the Social Cost of Carbon (SCC). As noted in a recent article in The Economist, climate economists refer to the SCC as “the most important number you’ve never heard of.” Essentially, the SCC attempts to capture in a single number how much “damage” a one-ton release of CO2 today will have in the future, expressed in today’s dollars. Of course,
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