Parents protest as tests show more than 2,000 children affected. Two new cases show that pollution regulations are often not enforced.
Environmentalists tout sustainable fish for the dish.
New coal-fired power plants will capture CO2 and inject it into the earth.
Italy's leader deemed the event a logistical 'miracle' after a last-minute change of venue. But critics decried lack of concrete progress on climate change, Iran, and trade.