For one group of women, global warming has just got personal. They have made a pact not to have children because of the “climate catastrophe” facing the planet.

About 60 women — and a few men — have joined up to form BirthStrike, a group that has imposed a voluntary ban on making babies until the planet “no longer faces global extinction”.

“I do have a partner and would like to have children with him. We’re really in love, and it feels like the right thing to do,” said Blythe Pepino, 33.

“But last year I read the latest report from the Intergovernmental Panel on Climate Change [IPCC] and realised how wrong it would be to bring a child into a world on the brink