Its not "people" we need to tell. Its those useless t****** in Westminster.
May I offer a correction redadare?
Of course 'people' should be 'told'. There are (even!) people posting here who still think there's nothing wrong with burning up fossil fuels if it helps them have a nice holiday or get to the jazz session.
If 'people' don't appreciate the need to cut carbon emissions on a personal level why should they suppose that governments should on their behalf? (and if 'people' no longer - if they ever did - have the power to influence public policy... that's another question!)