The main reasons I’ve seen from vegans for not eating meat seem to be all about the morality of eating a sentient animal, the practices of the modern meat industry, and the environmental impact of it. And don’t have anything to do with the taste of meat.
Since lab-grown meat doesn’t cause animal suffering, and assuming mass production is environmentally friendly, would you consider going back to eating meat if it were the lab-grown kind?
Growing plants outdoors takes a lot of water, and growing them indoors takes a lot of energy for the lighting.
Since lab grown meat won’t need all that light, energy costs might be lower, but maybe the energy to keep the growth happening at the right temperature will be quite high. You could offset some of that though with where its grown. Ultimately if we can do it close to room temperature that would be ideal, but I have no idea what the requirements are.
Overall though it might be exceptionally environmentally and climate friendly in it’s own rights, not just compared to raising the animals to kill them.
Greenhouses aren’t lit, usually. What are you talking about?
Depends on where you live. The further north you go, the less sun you have. And most people in developed countries live quite up north.