The EPA’s “Secret Science” rule establishing new standards for consideration of certain “pivotal” scientific studies, which was slated to go into effect on January 6, 2021, has been vacated and remanded by the U.S. District Court for the District of Montana. The decision follows one from a few days prior in which the court rejected EPA’s attempt to make the rule immediately effective. Notably, both decisions rely on the same basic principle — that the rule is not merely procedural, as EPA claimed, but substantive. That determination could be important for other rules that the Trump EPA viewed as procedural in nature, but that have been challenged as having substantive effect.

A California state legislator has introduced a bill that would require large corporations doing business in the state to publicly disclose their greenhouse gas emissions (GHGs). The bill, titled the Climate Corporate Responsibility Act, covers publicly traded domestic and foreign corporations with annual revenues in excess of $1 billion. According to state Senator Scott Weiner, who introduced the bill, it could affect up to 5,000 companies. The bill is not limited to any industry sector and would thus impact not only companies typically associated with GHG emissions, like oil and gas producers or power plants, but also would extend to other sectors, including the tech industry, for example.

On January 19, the last full day of the Trump administration, a three-judge panel of the D.C. Circuit Court of Appeals vacated the Affordable Clean Energy (ACE) rule, the Trump EPA’s replacement rule for the Clean Power Plan. The Clean Power Plan was a cornerstone of the Obama EPA’s efforts to address climate change and would have required electric utilities to shift generation from fossil fuels to renewable resources. That aggressive rule was halted by an unprecedented stay of the rule by the Supreme Court, but a decision on the merits has never been issued because the Trump administration took office and put the litigation on hold. In its January 20 opinion, the D.C. Circuit has now issued the first decision on the merits of the legal issues underlying both ACE and the Clean Power Plan.

On January 20, newly inaugurated President Joe Biden signed an executive order titled, “Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis,” initiating review of nearly 50 environmental rules and regulations, including 20 air-related regulations that the new administration views as insufficient or unsupported by the data.

In 2019, the D.C. Circuit in Hoopa Valley Tribe v. FERC  held that the plain language of Clean Water Act (CWA) Section 401 establishes a bright-line maximum period of one year for States to act on a request for water quality certification and that the Federal Energy Regulatory Commission (Commission) was arbitrary and capricious when it failed to enforce the statutory time-limit.  Since the Hoopa Valley Tribe ruling, the Commission has repeatedly held that a State waives its authority under Section 401 when it has sought to extend the one year review period by requesting or directing the applicant to withdraw and resubmit its application to afford the state reviewing agency more time.  In several recent cases, however, the Commission has found that there may be instances where a withdrawal and resubmission of a water quality certification by the applicant does not result in a State’s waiver of Section 401 certification authority.

Just before the inauguration of President Biden, the Trump administration surprised many by failing to revise the stringent CO2 standard for new coal-fired power plants. That standard, adopted by the Obama administration, is based on the use of carbon capture and sequestration — a technology only installed once in the U.S. at a facility that has now been mothballed. When the Trump administration proposed to repeal and replace that standard in 2018, the chance of it surviving in its current form seemed slim. However, as the clock ran out, the Trump EPA failed to finalize its 2018 proposal and instead issued a “significant contribution finding” that attempts to limit regulation of greenhouse gases from new sources to electric utilities alone. While likely to be reversed quickly by the Biden EPA, that determination erects one more barrier to broad regulation of greenhouse gas emissions under the Clean Air Act (Act).

On Tuesday, October 13, the National Hydropower Association (NHA) announced its partnership with American Rivers, the World Wildlife Fund, and other environmental groups in a “Joint Statement of Collaboration on U.S. Hydropower: Climate Solution and Conservation Challenge.” The Joint Statement, which was facilitated over the last two and a half years through Stanford University’s Uncommon Dialogue process, is a collaborative effort to address climate change by encouraging “the renewable energy and storage benefits of hydropower and the environmental and economic benefits of healthy rivers.”

The Federal Energy Regulatory Commission (FERC) has issued an order proposing a $15 million civil penalty in response to the failure of a licensee to respond to FERC dam safety orders in the wake of the failure of the Edenville dam and downstream FERC-licensed Sanford Dam (Project No. 2785) in Michigan in May 2020 (see June 1, 2020 edition of the WER).  The December 9, 2020 Order to Show Cause and Notice of Proposed Penalty followed months of FERC orders and directives to the licensee related to the catastrophic failure of the two dams, which resulted in the evacuation of 10,000 people, an estimated $190 million in economic damages to local residents, and $55 million in response costs, prompting Governor Gretchen Whitmer to request a disaster declaration from the federal government.

The U.S. Environmental Protection Agency (EPA) has announced its decision to retain the current National Ambient Air Quality Standards (NAAQS) for fine particulate matter (PM2.5) and ozone (O3) under the Clean Air Act. However, the new Biden EPA is all but certain to reevaluate the standards and likely to reach different conclusions.

PM2.5 is a mixture of small liquid or solid particles found in the air that are less than 2.5 micrometers (μm) in aerodynamic diameter. O3 is a reactive gas that is formed through chemical reactions of nitrogen oxides and volatile organic compounds in the atmosphere. Under the CAA, EPA must ensure the ambient standards for both pollutants are established at a level “requisite to protect the public health” with “an adequate margin of safety,” and EPA must review the NAAQS every five years to determine whether the standards should be retained or revised.