Thick smog is blanketing New Delhi after Diwali celebrations with fireworks sent air pollution levels soaring. Revelers burst firecrackers late into Monday night, filling the air with smoke and fine particles. By Tuesday morning, air quality in several neighborhoods ranked as severe. Last week, India's top court eased a ban on firecrackers, allowing limited use of "green firecrackers" that emit fewer pollutants. Pollution spikes due to firecrackers are common after Diwali, which coincides with cooler weather and crop residue fires. New Delhi and its metropolitan region — home to more than 30 million people — routinely ranks among the world's most polluted cities during winter.

California is suing three plastic-bag makers, alleging they misled people by falsely claiming their products were recyclable. State Attorney General Rob Bonta says the businesses violated a law that banned plastic bags that weren't recyclable. He says the businesses labeled reusable bags as recyclable even though recycling facilities cannot process them and they end up dumped in landfills, incinerated or in the state's waterways. The state filed a similar lawsuit against ExxonMobil about a year ago over the oil giant's plastic products. California passed a tougher law that takes effect next year banning all plastic shopping bags at grocery stores.