New York residents and businesses send over a million tons of food waste to the landfill each year. Julie Raskin, executive director of the Sanitation Foundation, the non-profit partner of New York City's Department of Sanitation, and the organizer of the Food Waste Fair, said all that waste costs the city a lot of money to process and has very serious implications for climate change.

"What happens when it's in a landfill environment is that is emits methane when it decomposes and that's a greenhouse gas thought to be up to 80 times more potent than carbon dioxide," said Raskin.

The Food Waste Fair will run through next Saturday and is offering both virtual and in-person events to teach people how to decrease their food waste.