1. The fifth annual Buffalo Enviro-Fair isn't going to wait for Earth Day on Friday. It takes place from 11 a.m. to 2 p.m. today in Niagara Square. Along with booths, information and product demonstrations from environmentally minded companies and groups, there will be a ceremonial tree planting by Re-Tree WNY, with Buffalo Mayor Byron W. Brown following with a brief speech at 12:15 p.m. Free tree seedlings will be given out in reusable drink tumblers by Natale Builders, which is planning an all-green development in Clarence.
2. Seven historic churches in the Polonia district on Buffalo's East Side will open their doors from 7 to 11 p.m. for the fifth year in a row on Holy Thursday under auspices of Broadway Fillmore Alive. Visitors are invited to drop into Corpus Christi, St. Ann, St. Stanislaus, St. Luke's Mission of Mercy, St. Adalbert Basilica, St. John Kanty and St. Clare to admire their beauty and spend time in reflection and prayer. For a map, visit www.broadwayfillmoreallive.org. For info, call 218-0232.
3. The next generation of smooth R&B vocalists shows its swoonable stuff at 7 p.m. in Kleinhans Music Hall. The singer called Tank (real name Durrell Babbs) has been tapped for high-profile collaborations ever since he sang with the group Ginuwine more than 10 years ago. His duet with Chris Brown on "Take My Time" earned him a Grammy nomination this year. The singer called Avant (real name Myron Avant) hasn't gotten attention from the Grammys, but he went platinum with his 2000 debut, "My Thoughts," and hit No. 1 on the R&B charts with his "Director" album in 2006. Tickets are $45 and $55.
4. The solution to the problem of deer impaling themselves on a historic cemetery fence, originally set to be unveiled Tuesday, will be announced at a news conference at 10 a.m. at Williamsville Cemetery. A fundraising plan for the project also will be outlined.
5. Cast and crew members will get to watch a preview screening of the latest major film shot in Buffalo -- "Henry's Crime," starring Keanu Reeves, James Caan and Vera Farmiga -- this evening in the Market Arcade Film and Art Centre, under arrangements by the Buffalo and Niagara Film Commission. Co-producer Lemore Sylvan will introduce the film for the local audience. The rest of us will have our chance when "Henry's Crime" officially opens here April 29.
6. Robert Twombly ought to be aesthetically pleased to be in Buffalo. The noted scholar is author of numerous books on Louis Sullivan and Frank Lloyd Wright, as well as H.H. Richardson and Frederick Law Olmsted. He's here amid their masterworks to deliver an illustrated lecture on the personal relationship between Sullivan and Wright at 7 p.m. in the Burchfield Penney Art Center auditorium at Buffalo State College. The talk is sponsored by Graycliff Conservancy, with support from the New York State Council on the Arts and Hodgson Russ, the law firm that owns and has restored Sullivan's Guaranty Building in downtown Buffalo. For information, call 947-9217.
7. Genomics expert and futurist Juan Enriquez, one of the world's leading authorities on the economic and political ramifications of the life sciences, comes off a week of moderating the TED2011 conference with Bill Gates last month to give the 2011 Prince Lecture at 7 p.m. in the Flickinger Performing Arts Center at Nichols School, 1250 Amherst St. His topic is "Science, Technology and the Next Human Species." Enriquez foresees improvements in our bodies and minds that could reshape our social, governmental and religious foundations. His talk is free and open to the public. P.S.: He's also funny.
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