In the given question, four statements are labelled as P, Q, R and S which when logically ordered form a coherent passage. Choose the option that represents the most logical order.

P: It's an opportunity we can't afford to miss.

Q: At least 25 percent of today's global warming is driven by methane from human actions.

R: One of the largest methane sources is the oil and gas industry.

S: Cutting methane emissions is the fastest opportunity we have to adopt immediately to slow the rate of global warming.