SAN FRANCISCO — The California Supreme Court didn’t sound sympathetic today to an industry coalition trying to stop a Manhattan Beach citywide ban on plastic bags.

After Manhattan Beach imposed the ban to limit plastic bags making their way into the ocean, the Save the Plastic Bag Coalition — a group of plastic bag manufacturers and distributors — sued, demanding an environmental impact report on the ban. The trial court sided with the coalition, and in 2010 a split Second District panel upheld that judgment.