The Water Efficiency Network (WATEF) hosted an excellent virtual masterclass on global trends in water efficiency back in June. There were speakers from Taiwan, Australia, USA and UK. Always interesting to hear from other countries as to their strategies to meet the supply/demand mismatch, an issue that is becoming more severe as populations increase and global warming causes more shortfall in accessible water supplies. There were some excellent graphics – this one of the expected replacement of single flush toilets by dual flush in Australia being my favourite.
All the PowerPoint presentations from the masterclass can be accessed here
And on the same theme thanks to Mischa Hewitt who sent me this link about the Californian drought, where 63 trillion gallons of water have already been lost, and scientists have noticed a half inch rise in ground levels as a result!