In vitro meat?
In-vitro meat is made from samples of animals conventionally slaughtered, as explained in this article on CNN:
For example, “pork” is made from pig ovaries retrieved from slaughterhouses, which are fertilized with pig semen, transforming them into embryos. They are then placed in a nutrient solution, where they grow and develop.
This sounds like science fiction, but it’s real – or nearly real, and might be ready within the next ten years.
Preliminary results from a study by Hanna Tuomisto, at the Wildlife Conservation Research Unit, University of Oxford, suggest that cultured meat would reduce the carbon emissions of meat production by more than 80 percent.
The environmental footprint of meat contributes more to global warming than the entire transportation sector.
Personal note: I still wouldn’t eat meat, even if they grow it in steel tanks.