7 a.m. to 2 p.m. International Conference on Climate Change; Marriott Marquis hotel, fifth floor, 1535 Broadway.
9:30 a.m. Meeting of Suffolk County Legislature; Rose Caracappa Auditorium, Rogers legislative building, 725 Veterans Memorial Highway, Hauppauge.
10 a.m. Meeting of Long Island Regional Planning Board; Plaza in Dennison building, 100 Veterans Memorial Highway, Hauppauge.
10 a.m. Finance Committee hearing on mayor’s preliminary budget; Council Chambers, City Hall.
10:30 a.m. Federal Trade Commission officials announce top national and local frauds and complaints; Alexander Hamilton U.S. Custom House, Meeting Room 1, 1 Bowling Green, basement level.
10:30 a.m. Steve Carl, Trump partner on the Ocean, holds media availability regarding application for building code variance to build basement in flood plain; outside steps of Cradle of Aviation Museum, Charles Lindbergh Boulevard, Garden City.
11 a.m. Rep. Steve Israel tours weatherized home and calls for restoration of weatherization assistance program; 41 Waverly Ave., Smithtown.
11 a.m. Residents announce filing of lawsuit to have their building transferred to independent administrator to clean code violations; 1849 Sedgwick Ave., Bronx.
12 p.m. Egg drop competition; Cooper Union, Foundation Building, East Seventh Street and Third Avenue.
12:30 p.m. Suffolk commission on school district efficiency unveils report and recommendations; Rogers legislative building, lobby, 725 Veterans Memorial Highway, Smithtown.
2:15 p.m. City comptroller reviews mayor’s preliminary budget at Finance Committee hearing; Council Chambers, City Hall.
6 p.m. Iraq war veterans and executive director of Vets for Freedom discuss counterinsurgency effort in Iraq; Harvard Club, 35 W. 44th St.
7 p.m. Manhattan Young Democrats host a Ohio/Texas Primary Returns Party, at DIP Bar and Lounge, 416 Third Avenue [added].