Last year when I went to Disney, I had asked one of the cast members there and she said that she really wasnt sure but she thought there had to be over 50,000 people who work for disney. Walt Disney World Employees.
Methane is just used as a fuel for a gas turbine (can also be used to drive an internal combustion engine coupled to a generator). The turbine is coupled to a generator, which generates electricity.
Any process that results in the production of methane and its release into the atmosphere can be considered a source.. The two main processes that are responsible for methane production occur as a result of microorganisms anaerobically converting organic compounds into methane.