8:45 a.m. to 2:30 p.m. Regional Plan Association’s 18th Regional Assembly, “Oil and Water: Adapting to Scarcity”; Waldorf-Astoria, Grand Ballroom, 3rd floor, 301 Park Ave., at 49th Street; 10:45 a.m. Panel discussion on congestion pricing; 1 p.m. House Speaker Nancy Pelosi speaks.
9:45 a.m. Pope Benedict XVI arrival ceremony at John F. Kennedy International Airport; 10 a.m. to 10:45 a.m. Addresses the United Nations; First Avenue and 50th Street; 5 p.m. Visits Park East Synagogue, 164 East 68th St., between Lexington and Third avenues; 6 p.m. Ecumenical prayer service; St. Joseph’s Church, 404 East 87th St.
10 a.m. Forum for the Protection of Religious Pluralism holds peaceful march against aggressive proselytizing to mark Pope Benedict’s address at the United Nations; from the United Nations, First Avenue and 36th Street, to the Gandhi statue at Union Square Park.
11 a.m. Parks Department cuts ribbon on the first Yankee Stadium redevelopment park; PS/MS 29, 758 Courtlandt Ave., between East 156th and 157th streets, Bronx.
11 a.m. Council Member Eric Gioia demonstrates new lighting and sound systems at The Chocolate Factory; 5-49 Ave., Long Island City, Queens.
11 a.m. U.S. Reps. Steve Israel and Peter King announces legislation to aid homeless veterans; Hicksville VFW, 320 South Broadway, Hicksville.
11:30 a.m. Nassau County Executive Tom Suozzi announces removal of all “scavenger” waste truck deliveries from the Bay Park Sewage Treatment Plant; Bay Park Sewage Treatment Plant, 2 Marjorie Lane, East Rockaway.
12 p.m. NYC Immigrant Affairs commissioner honors immigrant women who have opened businesses in neighborhoods around New York; New York Association for New Americans, 267 Broadway, 3rd floor.
2 p.m. Columbia University forum on blood diamonds and Ukrainian arms; Kellogg Center, Room 1501, International Affairs Building, 420 West 118th St., at Amsterdam Avenue.
3 p.m. Check presentation and tour of the Center for the Urban Environment’s new green building; 168 7 St., Brooklyn.
5:45 p.m. Anti-free trade activists protest speech by Colombian Vice President Francisco Santos Calderon; in front of the Council on the Americas, 680 Park Ave., at 68th Street.
6:15 p.m. Media availability with Rabbi Arthur Schneier and members of the Jewish community who attend Pope Benedict’s visit to the Park East Synagogue; 68th Street lobby of the Park East Synagogue, 164 East 68th St., between Lexington and Third avenues.