Whether the government uses fossil fuels to make hydrogen will be a retrospective act largely predicated on the gas industry lobby or goes for the greener option we wait and see.
So transport should be able to contribute massively to the reduction in emissions. The second element needed is to look at the distribution infrastructure to make it more efficient. Could I suggest making motorways HGV only for 4 hours in the early morning in Central England. That would enable a better flow of traffic and lower fuel costs could be passed on to the drivers, and hopefully shorter working hours. This would also increase the opportunities for innovation on the use computers.
Train costs need to be reduced – not increased by the maximum every year – to make journeys by train cheaper than by car.
Then housing -again the building industry lobby seems dominant in preventing sensible restrictions in energy efficiency. Solar panels, heat pumps, insulation should be compulsory together with social provisions for shops, entertainment, open space mandatory. Other providers like water authorities should be hit with punitive fines if they do not up grade sewage and water provision in line with population/building increase.
Agriculture – I suspect that family run farms are fairly good environmentally, but will need monitoring. The big concern are the acreages run by institutions for profit – they will bleat about food supply, but they are motivated only by profit. Our largest landowners are also happily collecting £millions in subsidies which are not needed. A cap on the size of farms for getting public subsidies would possibly lead to a more equitable distribution of land. Land use should also be factored into local land use maps and flood prevention.
Education and the arts. Cuts to university courses should be reversed. The BBC given more freedom from government influence. Ch4 should not be privatised. The arts provide £billions of exports across many mediums. Education needs to pull back from exam mania, and see its main role as education, employment training needs to be factored in increasingly through the years.