National Highways, the government agency responsible for England's main roads, has admitted that more than half a million trees beside a single 21-mile stretch of new carriageway have died – with the cost of replanting them now £2.9 million pounds.

Many tree experts say this is symptomatic of a focus on tree planting over tree care.

On this week’s Sky News ClimateCast, Tom Heap visits the A14 between Cambridge and Huntingdon where we speak to Lib Dem councillors Edna Murphy, Ros Hathorn and Firouz Thompson about what’s happened. Plus, tree surgeon Mike Downs on why it’s a much bigger issue, and former chief project officer at the Woodland Trust, Carol Honeybun Kelly, talks about solutions to help trees settle, survive and thrive.

Annie Joyce – senior podcast producer
Paul Stanworth – editor