NYC's emission rules spark concerns for pizzerias' ovens.

A proposal to reduce emissions from coal and wood-burning pizza ovens in New York City by 75% has faced backlash from some locals who argue that the devices will be expensive and may affect the flavour of the pizza. The new rule proposed by the city's Department of Environmental Protection will apply to coal and wood-fired ovens installed before 2016 and will require restaurants to evaluate their exhaust systems to determine if they can be outfitted with scrubbers capable of trapping pollutants. Pizzeria owners expect to spend tens of thousands of dollars to install the emissions-trapping machines, which will need to be passed on to customers.