Media playback is unsupported on your device
Media captionFive things we can do to help prevent global temperatures rising more than 1.5 C
Just a week after scientists said huge cuts in carbon emissions were needed to protect the climate, a UK minister has shown just how hard that will be.
Scientists say we ought to eat much less meat because the meat industry causes so many carbon emissions.
But the climate pastor Claire Perry has told BBC News it is not the government’s job to advise people on a climate-friendly diet.
She would not even say whether she herself would eat less meat.
Ms Perry has been accused by Friend of the Earth of a dereliction of duty. They say pastors must show leadership on this difficult issue.