Exactly, euro6 in since 2014, 9 years ago, where is euro7 or 8 ? EV's are are hardly a solution, extremely environmentally damaging.
State Aid rules don't apply to start ups/R&D.
Grants are available for GSHP but not Solar, GSHP only really work in very well insulated houses, which the UK does not have, lack of installers is down to Govt and follows the general trend of not enough trades people, made worse by a disastrous Brexit.
Did you listen to R4 and a program on recycled plastic and its dumping in the seas? how it is increasingly sent abroad where it is dumped or burnt? how industry will not reduce manufacture?
The pp nailed it, said we are strongly encouraged to give up stuff and thats the problem.. guidelines and encouragement will not help with ever increasing global warming and pollution.
Until there is wide ranging legislation, then we will carrying on as we are heading, which isn't good at all.
Your last paragraph is where we disagree, i don't believe the problems will be solved by the individual, most people have little money to be able to buy low energy products etc etc, they are struggling with their daily lives, Govt and business don't care, in action/profit is what drives them.