The UK government has been accused of “rushing through” planning changes that could give developers permission to “trash” nature for as little as £1.

A letter signed by more than 100 conservationists, scientists, celebrities and businesses, including the actor and writer Stephen Fry and the broadcaster Chris Packham, has urged the incoming prime minister, Andy Burnham, to immediately halt the rollout of environmental delivery plans (EDPs).

These plans, which were introduced through the Planning and Infrastructure Act, applying mainly to England and Wales, allow developers to sidestep environmental laws by instead paying into a national nature levy. Campaign groups say this allows developers to pay “cash to trash” wildlife.