Environmental organizations from the United States and Mexico are urging officials to use the upcoming review of the U.S.-Mexico-Canada Agreement (USMCA) as an opportunity to address the long-running pollution crisis affecting the Tijuana River watershed. During a news conference Thursday, WILDCOAST, Sierra Club, the Tijuana River Coalition, 4 Walls International and other nonprofit organizations called for stronger environmental protections and long-term investments to tackle what they described as one of North America’s most serious cross-border environmental and public health challenges. … According to the coalition, negotiators should include binding environmental commitments, stronger enforcement mechanisms and sustained funding to help reduce pollution that continues to affect coastal communities in both Southern California and Baja California.