how can plastic waste help grow food. this looks like a dumping ground for plastic trash. but it s actually crude material for every case and technology. you can get from a job you sarah low has created a system that combines recycling plastic and saving water. all it required was one great idea. and a little hole in a plastic bottle. thanks to the drip irrigation system. tomatoes have survived a month of drought. healthy despite the scorching sun. the farmer expects a harvest in two months which he can sell on the local market. just