Agree with most of the above and have some other items that are overdue to be banned completely:
Plastic bags and other single use plastics
Balloons, lanterns and disposable bbqs
Passiv house standards and sustainable materials for all new building work
Much higher standards for all new developments including large areas of land for recreational use but also large gardens to allow for residents to grow fruit and vegetables either communally or individually.
Safe cycle paths withing city centres. More restrictions on cars in city centres but this can only happen with improved public transport systems. Huge investment is needed and I don't see that happening!
I personally think that a hefty sales tax is the only way to curb spending. If goods become more expensive, people will buy less. The problem is that the economy will then shrink so the taxes need to be set according to the sustainability of the product to avoid this, i.e. lower taxes on more sustainable produce. In my view this will influence behaviour quicker than any other method without removing choice. We already have a system of VAT in place that could be adjusted to deal with this.
For example, solar panels are now zero-rated. We could stagger the VAT rates so put much higher rates on things like new cars, computers, phones and other gadgets and imported items such as cheap synthetic clothing/fast fashion and furnishings. The more expensive the item the higher the tax rate (e.g. A Ferrari would be taxed at a much higher rate than a small runaround car) to counter the issue that the poor would be hit worst. Lower rates could apply to sustainable products made in the UK or products from certified Fair Trade producers using sustainable methods abroad that support (but not exploit) people in third-world countries.
Second-hand items such as clothing and domestic furnishings could be zero-rated to encourage more re-use. Second-hand shops could become more commercially viable on the high street and not be just the domain of charity shops. In other places I have seen excellent recycling centres set up that are well-run, attractive places to shop where there is an element of cleaning, restoration and repair as required to make the goods very appealling to new buyers. They also offer decent structured employment opportunities and training rather than relying on the voluntary sector.
There are so many small things that can be done that would all help but most importantly we need to reduce the waste that is caused by over-consumption of non-essential goods. Such waste was unheard of 50 years ago as the ratio of average earnings to product prices was very different and meant that people purchased much less. Our consumer economy is ruining the planet. I know that the UK is a small fraction of the whole but surely it is up to the more developed countries to lead by example.
Sorry for the long post but feel passionately that we should be doing so much more!