More than 600 academics, politicians and campaigners signed a letter calling on the government to replace the current moratorium on fracking with an outright ban.
Claire O’Neill, the chair of the COP26 talks sacked by Boris Johnson last week, said the prime minister did not understand the climate emergency.
The prime minister has been warned that government support for fracking risks losing the Conservatives seats at the general election.
Environmental campaigners have called on the new Conservative leader, Boris Johnson, to ban fracking.
A group of 143 doctors, nurses and health specialists has called on Theresa May to ban fracking in her final fortnight in office.
Campaigners delivered a letter to Downing Street this afternoon, signed by more than 8,000 people, calling for an immediate halt on fracking in the UK.
A coalition of environmental organisations, community groups and academics has written to the Prime Minister in support of the National Trust in its legal fight against INEOS.