RENO, Nev. - A judge has sided with conservationists trying to block construction of thousands of homes north of Lake Tahoe, saying a local development plan "builds in opportunities to create environmental mischief" and violates California law. The judge ordered Placer County to suspend all activities under the 2003 Martis Valley Community Plan and set aside the environmental reviews used to approve plans for construction of at least 6,000 homes in the valley southeast of Truckee, Calif. "Of particular concern is the impact which the project will have upon traffic and air quality impacts within the Tahoe Basin," California Superior...