Everyone who hikes and camps knows what to carry in a backpack. Pack Fabric Nylon. Virtually all synthetic fabrics and plastics are made from petrochemicals produced from petroleum or coal. Petroleum requires the drilling of oilwells and pumping the crude oil.
Coal comes from open pit or underground mines.
The U.S. is self-sufficient in coal. Raincoat Nylon, plastic. Petrochemicals from crude oil or coal. Sleeping Bag Nylon,down, or synthetic fill like Hollofil. Down comes from geese and ducks fed with grain fertilized with petrochemical and potash-based fertilizers.