When you switch on your stove or turn up the heat, there’s a good chance natural gas is behind it. It powers nearly a quarter of the world’s energy use. But one question keeps surfacing: is natural gas renewable?
The answer is simple but layered. Conventional natural gas is a fossil fuel formed over millions of years, so it’s nonrenewable. Yet, renewable natural gas (RNG), made from today’s organic waste, is beginning to reshape the conversation. To understand its true role in the energy transition, we need to look at lifecycle emissions, economics, public health, and the global energy system.
What Exactly Is Natural Gas?
Natural gas is primarily methane (CH₄), with small amounts of other hydrocarbons. It originates from ancient plants and animals compressed under rock for millions of years.
Key uses today:
- Heating homes and buildings
- Generating electricity
- Manufacturing fertilizers and industrial chemicals
- Fueling transport in certain regions
