What about older council and HA blocks with single-skin walls and cavity to insulate? I live in one and nobody has anything to offer. What are architects for, if not solving problems like this? No retrofitting for us, just retro heat loss, bigger bills and higher emissions. How about some "whole house" solutions for 1930s blocks of flats? No, I don't mean demolish them and build new as the embodied energy should not be thrown away. I mean bringing such blocks up to standard. The government apparently sees only solutions for semi-detached houses.
I have been using low-energy light bulbs since they cost £12 or more each. But what happens to them afterwards? Generally, they go to landfill or incineration, where the small amounts of mercury they contain pollute the soil or, even worse, the atmosphere. The government sees only CO2 and ignores other greenhouses gasses, let alone heavy metals. There is an urgent need for proper dismantling, extraction and recycling of the otherwise harmful elements form low-energy lightbulbs. But then that's a bit complicated, beyond the simplistic solution soundbite approach, and so not likely to happen.