Supermarkets should have fitted doors to their fridges thirty years ago and could have done, but didn't because ... profit.
Peat has been a big issue for at least thirty years. It's not 'new'.
No, I wouldn't have an outside heater to heat the wind. I don't have a tumble drier. I might have a heating pad if I had a greenhouse as it probably uses v little electriciity - equivalent to a few light bulbs. I can see the argument for heating a greenhouse if you are a commercial grower.
Yes, it makes sense to re-use your plastic, clothes, etc until the end of the items' life. Except jersey fleece. Manufacturers and govts know it's one of the single worst things for shedding micro plastics but they are still selling fleece jumpers, dressing gowns etc by the tonne. There is hard core data on this. It's unconscionable.
No heated greenhouse here and the only things I might need it for currently are OK on a windowsill or near a south facing window in the house. I have considered building a heated greenhouse as it would expand on the amount of food I could grow for myself, but the materials do add up a bit and it has been difficult to get planning permission for the construction from the girlfriend who wants something similar to Monty Donn's greenhouse in appearance. What I think is interesting from an energy efficiency point of view is building a solar heated greenhouse. It is apparently quite possible to build something to remain frost free overwinter with no expenditure on active heating and the temperature is kept above freezing by heat taken in from the sun during the day and stored in something like water barrels painted black or by channeling air to be warmed by geothermal heat from below ground. There is a good video I found explaining some of the design principles here.
To be serious, do you think that individuals will change things? This is what I tried to say on another thread. The world is moving tooooooo fast now for individuals to make a change (I'm not advocating doing nothing though). We need (somehow) for govs around the world to be able to look at what is being manufactured, how it is made 'cleanly' and just as importantly, how it is disposed of. ALL manufacturers must be forced in taking back what they make to recycle it - or to group together to provide that service (ie all clothing manufacturers belong to the clothes recycling group and provide that service). The price of anything must include its disposal - or else we'll stop using plastics today, and tomorrow some other new product will come along and be the issue for the next generation. We KNOW now that disposal of items is the problem with 7 billion people. So to ignore how a thing is disposed of is just folly. We need to look at ramifications of all manufacturing, recycling, living - can we continue to concrete over the planet, flood the waterways with cr*p (literally) - build mega cities that throw off so much heat. Anyone walked around London lately...been on the underground...walked around a shopping mall (I hate that word) centre?
Edited to add: Urban Heat Islands - UHI. How long before they realise that they have have a climatic impact?
Our Leclerc SM has just installed doors on all their chilled cabinets, but I bet not many people are sanitizing their hands after using the door handles.
To answer the original question - we've done the most meaningful thing possible. We decided not to have any children. I'm guessing I won't win any friends for pointing it out but, as unpalatable as it is, the unchecked growth of the human population far outweighs any other threat to the planet.
Clay soil - Cheshire/Derbyshire border. I play with plants and soil and sometimes it's successful
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I play with plants and soil and sometimes it's successful