10 a.m. Brooklyn borough president presides at annual Christmas tree recycling and wood chip giveaway; Green-Wood Cemetery, Fifth Avenue at 25th Street, Brooklyn.
11 a.m. Officials kick off dredging of Jones Inlet and restoration of Point Lookout Beach; Civic Beach, Ocean Boulevard and Freeport Avenue, Point Lookout.
2 p.m. Assemblyman Tom Alfano and State Sen. Kemp Hannon unveil bill to mandate that first responders, villages and schools be alerted to fright trains carrying hazardous materials; New Hyde Park Train Station, New Hyde Park Road, New Hyde Park.
3 p.m. Council Member Helen Diane Foster announces annual Dr. Martin Luther King, Jr. memorial service; Grand Concourse Seventh Day Adventist Church, 1285 Grand Concourse, at 169th Street, Bronx.
4 p.m. Discussion with Weill Cornell infectious disease expert; Brooklyn Public Library, Dr. S. Steven Dweck Center for Contemporary Culture One Grand Army Plaza, Brooklyn.
1 p.m. Presidential Forum hosted by the Chelsea Reform Democratic Club. Fulton Senior Center, 119 Ninth Ave. (betw. W. 18th & W. 19th Sts.).
12:15 p.m. Council Member Bill de Blasio and environmental advocates gather on the City Hall steps to press Mayor Bloomberg to support an electronic waste (e-waste) recycling bill.