Some people say that breaking away from Europe will be good for our environment, deal or no deal. They say we can make our own laws – after all, didn’t we introduce the Clean Air Act that defeated the London smog. And the Climate Change Act that committed us to reducing global warming emissions. As well as bring doorstep recycling to every home. Yes we did, but only after a combination of rebel MPs, widespread support and organisations like Friends of the Earth backed the government into a corner.