The Prime Minister promised all sorts of amazing targets that would make the UK a world beating climate change fixer. He promised targets, he didn’t mention how to achieve those targets, nor who would be doing it, nor what money would be spent.
I think we’ve noticed his tendency to over promise and under deliver; his – shall we say – tenuous association with the truth; his… not being a ‘details man’ (i.e. not much liking to do anything at all).
It’s fair to assume any words from him about global warming are just that: just words.