The document discusses three organizations in New York City where one can volunteer: Charity: Water which brings clean drinking water to developing countries and has helped over 2 million people; City Harvest which rescues unsold food from restaurants and distributes it to food programs to end hunger, having distributed over 300 million pounds of food; and the New York City Department of Parks and Recreation which is seeking volunteers to plant 15,000 flower bulbs in Washington Square Park before winter.