Utopia, urban growing and Andy Murray

It's not often that you hear the business case for sustainability described as a 'defroster'. But that's the way we roll here when we do a Twitter Q&A. @shyman33 shared his picture of urban growing on top of a London firestation With our new CEO, Sally Uren, in place, we went to Twitter to give our community the chance to drill her on the latest sustainability issues and trends. And drill her they did! Among the topics in the hour-long Q&A were: urban growing, moving the dial on pre-competitive and competitive activities, and the footprint of wood and concrete. We had some great Qs and you can read them all and her response in our storify below. read more