£1bn plan includes increase in renewable energy and innovative refrigeration technology © J Sainsbury plc
Sainsbury's plans to be net zero by 2040
Filtering equipment has been set up at the Warragamba Dam © Getty Images/iStockphoto
NSW protects drinking water from bushfire ash
Transactional relationships a problem for water sector
Case study: Working with the birds and bees
Can cloud seeding stop Indonesia's forest fires?
UAE tests new cloud seeding nanomaterial
John Lewis to supply its own water
MENA countries dominate water stress ranking
Access to clean water and sanitation is a top challenge for tea workers. © Nicolas Economou/NurPhoto/Getty Images
Twinings pays to improve water and sanitation for tea workers
Freshwater supplies from the Tigris-Euphrates support 60m people. © Matt Cardy/Getty Images
'Transboundary action' needed on freshwater supply
Diageo said Tusker will be the most sustainable brewery in Sub-Saharan Africa. © SIMON MAINA/AFP/Getty Images
Diageo's £180m investment in Africa
The agricultural sector has the largest water consumption globally. © GomezDavid/Getty Images
Campaign calls on firms to save water