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A federal appeals court has upheld EPA’s rejection of a petition from East Coast states seeking an expanded Ozone Transport Commission (OTC) region where stricter ozone controls could be imposed to curb interstate air pollution, citing EPA’s discretion but noting states have other options for trying to force the agency to cut transported emissions.

Several states and environmental groups seeking stricter EPA policies to curb interstate ozone air pollution are urging a federal appellate court to scrap the agency’s rule to “close-out” its major cross-border air trading program without requiring additional ozone cuts from states, saying EPA lacks legal justification for the rule.

Ranchers and local-government groups are launching new lawsuits aiming to preserve or expand the current bar on EPA and the Army Corps of Engineers implementing their 2015 Clean Water Act (CWA) jurisdiction rule in certain states, pushing back against new Democratic governors who have withdrawn from suits over the rule.

The Chesapeake Bay Program (CBP), a federal-state partnership, is preparing to decide how to respond to a 2018 report from an EPA financial advisory panel intended to improve access to private equity capital to fund reductions in nonpoint sources of nutrients and sediment, with one expert cautioning the report may not address the whole watershed.

Capitol Hill lawmakers are fleshing out proposals to create a clean energy standard (CES) for the utility sector that would reward a wide range of technologies that reduce greenhouse gases, including nuclear plants and carbon capture and storage (CCS) projects, even as the route to enacting such a program remains murky.

A study by University of Wyoming researchers and a major environmental group is warning California and other states that import natural gas from New Mexico that oil and gas drilling in the state may generate up to five times as much methane emissions than previously estimated by EPA.

California Air Resources Board (CARB) officials are faulting a new academic analysis alleging that the board’s U.S. forestry management greenhouse gas offset protocol is over-crediting projects because it underestimates carbon emissions that are “leaked” when unregulated projects are undertaken to make up lumber supplies.