The environmental fight that played out inside the Supreme Court on Wednesday was unusual in many ways: It featured poop, a whopping $10 billion fine and one of the nation’s greenest cities — San Francisco — battling the Environmental Protection Agency over water pollution rules in a case that could reverberate beyond the Bay Area.

Lawyers for San Francisco told the court it was "unfair and unworkable" to hold the city potentially liable for huge fines because of polluted water along Pacific beaches near the

The Supreme Court appeared split Wednesday on a challenge from the city of San Francisco to the U.S. Environmental Protection Agency over federal wastewater rules. In its lawsuit against the federal agency,