Author Recent Posts Philipp Grevenstette Latest posts by Philipp Grevenstette (see all) #024 – Leaders for Climate Action – The entrepreneurial community that drives climate action - June 14, 2021 #015 – Klima – Climate action at the tap of a button - March 5, 2021 #014 – robinhoodstore – Reshaping the economy through organic community supermarkets - March 1, 2021