steaead we have an open cotrucucti usingng a h helical shapape, , but much - -- which s much more sunlight into the core of the building. then we have a logistics system fofor how to move our crops at e same timime as thehey grow insne vertrtical building. >> when n will the plantntagon begin producining and what willt produce? 2013.the end of depends on the local authoritiess. we are ready to starart building at this s stage. we will have a p production of 3000 to 50500 tons every year. onhahat building, , thfootprintt on t the ground is 400 sququare meteters. thatat is s thwhole poinint of g things v vercal. on the footprint o on the ground of 400 square meters, that is like a normal garden that you have y your house. we produce 500 tons of food every year. inwill be goioing back k troy - the dirty city environmentnt you need to grow this s in a closesd system, or a at least a a semi- closed s system. that means t that you have to have peoeoe gogoin intnto the syemem as he possibly could to protect this from beingg - -- havingng to use pesticidedes and otother thingsgs. what w we and eve

the singer also later retweetede a story acknowledging thehe shapap. hopefully, the house is okay.rds,e a there was not a dry eye in the house when wham delivered a delr poignant emotional trick on then the iconic george michael. andrew richly, shirley hollow man and pepsi -- is that how you say it.sat. >> it sounded funny.ny >> took to the stage at london'n o2 arena to introduce cold flayy chris martin's performance of georgia a different corner. core take listen. >> ♪♪ chris formed while images of george flashed up behind him atd one stage video of georgeeo singing was combined with crisis' own vocals to make ittok seem like they were doing duet.e that was very nice way to t remember him and real whenlyheny members of wham forgive me if i pronounced your name. n they were all talking and got visible choked up.e ch >> i was a wham fan but i only o thought it was george and andrew. >> i think they were the singere i guess maybe those wereybe thse musicians or something.s som >> okay. >> i didn't know they had them.w >> they all talked about how as they watched him perform onform st