Bradshaw also suggested farmers should be given tax breaks to build water storage systems on their land to prepare for the years ahead. "It does feel like there is going be some shortages of [food] products", Bradshaw told Radio 4's Broadcasting House. The combination of low rainfall and prolonged heat has quickly depleted water reserves in soils, vegetation and rivers. Heat health alerts are in place across most of England until at least 09:00 BST on Wednesday. Amber alerts indicate a rise in deaths of vulnerable people and increased demand on health services are likely, while yellow alerts indicate these are possible.