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1、.专业.专注.GreenroofAnnieNovakhasfarmedinninedifferentcountries,butneveronafarmthatrequiredclimbingonaflightofstairs.This6,000-square-footorganicfarmisontheroofofawarehouseinBrooklyn."We'realreadygrowingourfallsquashes,andwe'resayinggoodbyetooursummerfruits,"Novaksaid..word可编
2、辑..专业.专注.StartedinApril,itisthenation'sfirstcommercialworkingfarmbuiltonagreenroof.Theownersgrowandsellmorethan30varietiesoffruitsandvegetablestolocalrestaurantsandresidents.Besidesthefood,greenroofsofferbigenvironmentalbenefits.Thesoilonthisroofcanabsorbuptotwoinchesofra
3、in,preventingrainwaterfrompickinguppollutantsonthegroundbeforeitentersstormdrains..word可编辑..专业.专注."Whenitgoesoutthedrain,ithitsaveryantiquatedsewagesystemthatwhenit'sovertaxedjustpumpseverythingoutintotheocean,"Novaksaid.LisaGoode,whodesignedthisfarmandbuildsgreenroofsfor
4、homesandofficebuildings,saystheyreduceutilitybills."Thisbasicallyactsasanairconditionerfortheheatthatrisesthroughabuilding,"Goodesaid..word可编辑..专业.专注.Thesoilandplantsalsosaveownersmoneybyextendingthelifeofroofs."You'reprotectingyourroof,becauseyou'reremovingitfromUVraysan
5、diceandcold,"Goodesaid.WhilethisrooftopfarminNewYorkisexceptional,itisnotunique.Therearegreenroofssproutingupalloverthecountry.GreenroofsontopofbothChicago'scityhallandSanFrancisco'sCaliforniaAcademyofScienceskeepthebuildings.word可编辑..专业.专注.10degreescoolerinthesummerandth
6、atmuchwarmerinwinter.AhospitalinGreenBay,Wis.andafirehouseinRaleigh,N.C.justinstalledgreenroofs.Thetwo-and-a-halfacregreenroofontheTargetCenterArenainMinneapoliswillkeepamilliongallonsofstormwaterfromflowingintotheMississippiRivereveryyear.Andyoumightbesurprisedtolearntha
7、toneofthelargestgreenroofsinAmericawasbuild"Fordtough"ontopofatruckplantinDearborn,Mich..word可编辑..专业.专注.AnnieNovakhopesherBrooklynfarmdoesn'tremaintheonlygreenroofintheneighborhoodforlong."Themorethemerrier,"Novaksaid."Weneedthisinthiscity."FromhomelsstoHarvardEveryonehas
8、baggage,butLalitaBooth'sisheavierthanmost.CBSNewscorrespondentMichelleMillerreportsBoothcanlaugh
