Jacob has been contributing to The Guardian in a series of articles about how water efficiency can be integrated into everyday life.
Most recent: Response to DECC consultation on smart metering technical specs
All the winners and runners-up
Our guide to effective retrofitting projects
The values that guide our work
Sometimes you have to run the tap to get hot or cold water, use this water to fill your kettle or keep a watering can near for houseplants!
1 hour ago