More than eight million households have been placed under hosepipe bans - which has raised questions about how effectively water resources are being managed.
Planting trees and using mulch on bare soil are among the tips offered by experts.
If the heatwave is here to stay, could a hosepipe ban be introduced in the north-west of England?
Guernsey Water says stocks are "healthy" and it has no plans for restrictions such as hosepipe bans.
People in the South West and Channel Islands conserved water in 30C heat during the summer of 1976.
Successive governments have failed to prepare the UK for extreme heat, the climate watchdog says.
The government funding comes as part of its programme to facilitate growth around Cambridge.
The firm pumped sewage into rivers and the sea for 285,000 hours in 2025 - a cut of 33% on 2024.
Some 26 million people are "facing extreme hunger" in Kenya, Ethiopia and Somalia, warns humanitarian organisation Oxfam.
