Renewable natural gas (RNG) has been receiving a lot of buzz lately. You may have seen this recent headline: UPS makes largest purchase of renewable natural gas ever in the U.S.

UPS contracted with Clean Energy to purchase 170 million-gallon equivalents of RNG. Fleet Owner ran an article about how RNG supply and demand in the U.S. transportation sector will grow rapidly over the next five years.

What exactly is RNG? Why is RNG becoming the next big thing in transportation fuels? Does RNG really have emissions below zero? Let’s explore these and other important questions.

By Greg Roche, Fleet Owner