Nitrogen is pulled out of the air which is free but the process requires hydrogen which is acquired from disassembled methane, the price of which is a significant contributor.
US shale oil notably has a lot of natural gas - methane.
the methane isnt the issue, building and operating the processing plants is
US shale oil notably has a lot of natural gas - methane.
the methane isnt the issue, building and operating the processing plants is