Lab Grown Meat

I want to research lab grown meat, how they use only the cells of animals to grow meat.
How lab grown meat has progressed through the years and how it might impact our future for the animals, the planet and humans. I want to show the progress since they started to try and use animal cells to grow meat and how far they have come today. What is the reason they are doing it, does it have anything to do with consumers, animals, planet. What is the whole reason for lab grown meat.What countries have gotten furthest in this technology and what is available today for the consumers.