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.
Methane (CH4) is a greenhouse gas. It affects the radiation budget of Earth directly (by intercepting heat radiation) but also indirectly, by reacting with other trace gases in the atmosphere, and by delivering water molecules upon oxidation in the stratosphere.