Sierra Club Loses Bid to Revive San Diego Climate Plan Challenge

The Sierra Club failed to revive a challenge to San Diego County’s climate action plan after a California appeals court ruled the environmental group failed to raise key arguments in lower court proceedings.

The Sierra Club waived its primary claim by neglecting to argue the county failed to remedy deficiencies in its climate action plan previously identified, Justice Martin N. Buchanan ruled Friday in an opinion. The California Courts of Appeal ruled a trial court properly discharged the Sierra Club’s writ of mandate, which sought to direct the county to remedy a number of violations of the California Environmental …