While some city buildings are considering "greening" their roofs with gardens (Curbed as a rendering of one roof garden for Silvercup Studios), we hear there's a protest tonight to "openly mock" a plan to put AstroTurf on Cadman Plaza Park in Brooklyn. Reader Chris says, "As dumb ideas go, this one is pretty striking. Why not put up some plastic trees so we'll have greenery in winter." Cue the Radiohead! Just thinking about putting AstroTurf in a city park makes us wonder if having Lego surfaces in parks is next...although that'd be kinda cool.

The protest is at 7PM, Cadman Plaza Park. No word on what the turn out will be like - if you go, give us the details.