Is Methane More Powerful Than Hydrogen? A Deep Dive into Energy and Environmental Impact

I remember a conversation I had at a family barbecue last summer. My cousin, Mark, a good-hearted fellow but not exactly an energy expert, was holding forth about how we ought to just stick with natural gas because it’s “so much more powerful” than all this talk about hydrogen. He was genuinely puzzled, asking, “Why are we even bothering with hydrogen when methane-based natural gas fuels pretty much everything we’ve got going on right now?” It’s a common misconception, and it really highlights a crucial misunderstanding about what “powerful” truly means in the context of energy sources and their environmental ramifications. So, let’s get right to it: in terms of raw energy per unit mass, hydrogen is indeed more powerful than methane. However, when we talk about atmospheric warming potential, methane is an extraordinarily potent greenhouse gas, far more powerful than hydrogen or even carbon dioxide in the short term. This distinction is absolutely critical, and it’s a heck of a lot more nuanced than a simple horsepower comparison.

Untangling this often-confused comparison requires us to look beyond just the brute force of a fuel and consider its various characteristics, from energy density to environmental impact. What folks like my cousin Mark are often thinking about is the immediate energy output they see in their everyday lives – how efficiently their furnace runs, or how far their car might go on a tank of gas. But the story of methane versus hydrogen is a complex narrative, woven into the very fabric of our energy future and the urgent need to address climate change. Let’s really dig in and dissect what makes each of these gases tick, and why their “power” is measured in such different, yet equally important, ways.

Understanding “Powerful”: Defining the Terms

Before we can truly answer whether methane is “more powerful” than hydrogen, we first have to get on the same page about what “powerful” even means in this context. It’s not a single, straightforward metric; instead, it’s a mosaic of different properties, each crucial for a complete picture. When discussing energy sources, especially gases, we typically consider a few key dimensions:

• Energy Content (Energy Density): This is the amount of energy released when a certain quantity of the substance is combusted or converted. It’s usually measured in two ways:
  • Gravimetric Energy Density: Energy per unit of mass (e.g., megajoules per kilogram – MJ/kg). This tells you how much bang you get for your buck, mass-wise.
  • Volumetric Energy Density: Energy per unit of volume (e.g., megajoules per cubic meter – MJ/m³). This is important for storage and transportation, as it tells you how much energy can be packed into a given space.
• Greenhouse Gas Impact (Global Warming Potential – GWP): This is a measure of how much heat a given mass of a greenhouse gas traps in the atmosphere over a specific period compared to the same mass of carbon dioxide (CO2). It’s a crucial environmental metric.
• Combustion Characteristics: How cleanly does it burn? What are the byproducts?
• Practical Applications: How easy is it to produce, store, transport, and use in existing or new infrastructure?

My own experience talking to folks about this tells me that the energy content is often what comes to mind first, but the environmental impact is what really shifts the paradigm. Let’s unpack each of these fascinating gases individually.

Hydrogen: The Lightweight Powerhouse

Hydrogen, element number one on the periodic table, is the simplest and most abundant element in the universe. It’s practically everywhere, but rarely found in its pure gaseous form (H2) on Earth. Instead, it’s typically bound up in compounds like water (H2O) or hydrocarbons. For us to use it as a fuel, we have to separate it from these compounds, and that’s a big part of the hydrogen story.

Atomic Structure and Properties

A hydrogen molecule (H2) consists of two hydrogen atoms bonded together. It’s incredibly light, the lightest of all gases. This lightness is a double-edged sword: it contributes to its impressive gravimetric energy density but presents significant challenges for volumetric storage. Pure hydrogen gas is colorless, odorless, non-toxic, and highly flammable.

Energy Density: Gravimetric vs. Volumetric

Here’s where hydrogen truly shines in one sense:

• Gravimetric Energy Density: Hydrogen boasts an exceptional gravimetric energy density, roughly 120 MJ/kg. This is significantly higher than methane (around 50-55 MJ/kg) or gasoline (around 44 MJ/kg). This means that for every pound of hydrogen, you get a whole lot more energy than for a pound of just about any other conventional fuel. This is a big reason why it’s considered for applications where weight is critical, like aerospace.
• Volumetric Energy Density: Ah, but here’s the rub. Because hydrogen is so incredibly light, its volumetric energy density at standard atmospheric pressure is quite low. To store a meaningful amount of energy, you either need massive tanks of gas or you have to compress it to extremely high pressures (700 bar or more) or liquefy it at cryogenic temperatures (minus 253 degrees Celsius). Both compression and liquefaction are energy-intensive processes and add to the cost and complexity of hydrogen infrastructure. This low volumetric density is a real head-scratcher for adoption in vehicles or power plants where space is at a premium.

Clean Combustion: Water as a Byproduct

One of the most appealing aspects of hydrogen as a fuel is its combustion byproduct. When hydrogen burns, it primarily reacts with oxygen to produce water vapor (2H2 + O2 → 2H2O). That’s it. No carbon dioxide, no soot, no sulfur oxides, no particulate matter. This makes it an incredibly clean-burning fuel at the point of use. If the hydrogen itself is produced in a way that generates minimal carbon emissions (what we call “green hydrogen,” produced via electrolysis powered by renewable energy), then the entire lifecycle can be virtually carbon-free. That, my friends, is a game-changer for decarbonization efforts.

Challenges: Storage, Production, and Infrastructure

While hydrogen’s promise is immense, it’s not without its hurdles:

• Production: Historically, most hydrogen has been “grey hydrogen,” produced from natural gas via steam methane reforming, which releases a significant amount of CO2. “Blue hydrogen” attempts to capture these emissions, but it’s not emissions-free. “Green hydrogen,” produced from water electrolysis using renewable electricity, is the holy grail but is currently more expensive and less scaled.
• Storage: As mentioned, storing hydrogen is tough due to its low volumetric density. High-pressure tanks and cryogenic liquefaction are both challenging. Research is ongoing into solid-state storage materials, but practical, widespread solutions are still a ways off.
• Transportation: Moving large quantities of hydrogen, especially over long distances, requires dedicated pipelines or specialized carriers, which represent significant infrastructure investment.

My take? The potential of hydrogen is undeniable, especially when we talk about truly clean energy. But it’s not a silver bullet; it’s a vital component of a multifaceted strategy, and we’ve got to be smart about how we tackle its practical challenges.

Methane: The Potent Hydrocarbon

Methane (CH4) is the primary component of natural gas, a fossil fuel that has powered much of our modern world for decades. It’s a simple hydrocarbon, meaning it’s composed of carbon and hydrogen atoms. It’s what heats many of our homes, generates a substantial portion of our electricity, and fuels various industrial processes. It’s been a workhorse, no doubt about it.

Chemical Composition and Natural Gas

Each methane molecule contains one carbon atom bonded to four hydrogen atoms. As a gas, it’s also colorless and odorless, which is why utilities add a distinctive sulfur smell (like rotten eggs) to natural gas, making leaks detectable for safety reasons. Natural gas, as it comes out of the ground, is not pure methane; it typically contains other hydrocarbons like ethane, propane, and butane, as well as non-hydrocarbon gases like nitrogen and carbon dioxide, but methane is by far the dominant component.

Energy Density (Comparison to Hydrogen)

Compared to hydrogen, methane has a different energy density profile:

• Gravimetric Energy Density: Methane’s gravimetric energy density is around 50-55 MJ/kg. While respectable, it’s significantly lower than hydrogen’s 120 MJ/kg. So, pound for pound, hydrogen packs a much bigger energy punch.
• Volumetric Energy Density: This is where methane has an advantage over uncompressed hydrogen. Because methane molecules are heavier and larger than hydrogen molecules, a given volume of methane at standard conditions contains more energy than the same volume of uncompressed hydrogen. This makes it much easier to store and transport methane as a gas without needing extreme pressures or cryogenic temperatures, which is a major reason why natural gas infrastructure is so widespread.

Combustion: CO2 and Water, but also Methane Slip

When methane burns, it reacts with oxygen to produce carbon dioxide and water (CH4 + 2O2 → CO2 + 2H2O). While water is benign, CO2 is the most well-known and abundant greenhouse gas. So, unlike hydrogen, methane combustion directly contributes to atmospheric CO2 levels, which drive climate change. This is the fundamental reason why it’s considered a fossil fuel with a significant carbon footprint.

But there’s an even more insidious problem: methane slip. This refers to the unintentional release of uncombusted methane into the atmosphere. This can happen at every stage of the natural gas lifecycle: during extraction, processing, transportation (from leaky pipelines), and even during combustion if engines aren’t perfectly efficient. And this “methane slip” is a big, big deal for the climate.

Greenhouse Gas Impact: GWP, Lifetime in Atmosphere

Here’s where methane truly earns its reputation as a “powerful” gas, but in a very detrimental way. Methane itself is a potent greenhouse gas. Its impact is typically measured by its Global Warming Potential (GWP):

• GWP: The Intergovernmental Panel on Climate Change (IPCC) reports that methane has a GWP of approximately 28-34 over a 100-year period, meaning it traps 28 to 34 times more heat per unit mass than CO2 over that century.
• Short-term GWP: However, methane’s GWP is much higher over a shorter timeframe because it breaks down faster than CO2. Over a 20-year period, methane’s GWP is closer to 80-87 times that of CO2. This short-term potency is why reducing methane emissions is often seen as one of the quickest ways to curb near-term global warming.
• Atmospheric Lifetime: Methane typically remains in the atmosphere for about 9-12 years, much shorter than CO2, which can persist for hundreds to thousands of years. But during its relatively short atmospheric lifespan, it packs a serious punch.

The sheer potency of methane as a greenhouse gas is, in my opinion, one of the most underappreciated aspects of the climate challenge. When people talk about “natural gas” as a “bridge fuel,” they often overlook or downplay the massive climate risk posed by methane leaks. Losing just a few percent of extracted methane to the atmosphere can, in some cases, negate a significant portion of the climate benefits compared to burning coal.

Sources: Natural and Anthropogenic

Methane comes from both natural and human-caused (anthropogenic) sources:

• Natural Sources: Wetlands, termites, oceans, permafrost, and geological seeps. These have been part of the Earth’s natural cycles for eons.
• Anthropogenic Sources: These are the ones we can control, and they are significant. Key anthropogenic sources include:
  • Oil and Gas Systems: Leaks from wells, pipelines, processing plants, and storage facilities.
  • Agriculture: Enteric fermentation (livestock digestion, especially cattle) and rice cultivation.
  • Landfills: Decomposition of organic waste in anaerobic conditions.
  • Coal Mining: Methane released during mining operations.

Understanding these sources is key to developing strategies to reduce methane emissions, which is a critical part of tackling climate change in the short to medium term. It’s not just about transitioning away from fossil fuels; it’s about minimizing the leakage of the ones we’re still using.

Direct Comparison: Power Metrics

Now that we’ve laid out the individual characteristics, let’s put methane and hydrogen side-by-side to directly compare their “power” across different metrics. This really clarifies why my cousin Mark’s initial assessment, while intuitive, misses some crucial points.

Energy Content: Gravimetric vs. Volumetric

Here’s a snapshot of their energy densities. Keep in mind that volumetric energy density can vary wildly based on pressure and temperature, so we’ll use values at standard conditions (STP) for comparison where applicable, recognizing that practical storage often involves higher pressures.

What this table makes clear is that if you’re concerned about weight – say, in a rocket – hydrogen is your undisputed champion. But if you’re concerned about how much energy you can cram into a standard fuel tank without extreme engineering, methane (as natural gas) has a distinct advantage at normal temperatures and pressures.

Environmental Impact: GWP and Atmospheric Lifetime

This is where the term “powerful” takes on a whole new, and frankly, more alarming meaning for methane.

Note on Hydrogen’s GWP: While hydrogen itself is not a direct greenhouse gas, some research suggests that *leaked* hydrogen can indirectly affect the concentration of other greenhouse gases, particularly methane and ozone, in the atmosphere. It does this by reacting with the hydroxyl radical (OH), which is a “detergent” for breaking down methane. By consuming OH, leaked hydrogen can slightly prolong methane’s atmospheric lifetime. However, these indirect effects are generally considered minor compared to direct greenhouse gas emissions, and the GWP assigned to hydrogen itself is considered negligible by the IPCC compared to methane or CO2. The climate impact of using hydrogen is overwhelmingly determined by *how it’s produced* (e.g., green, blue, grey) rather than by the gas itself if it leaks.

The numbers don’t lie. Methane is an environmental heavyweight, especially in the short term. Reducing methane emissions is like hitting the brakes on global warming in the near future, buying us precious time while we work on the larger, more persistent CO2 problem.

Combustion Products

• Hydrogen: Primarily water (H2O). Virtually zero CO2 or other air pollutants at the point of combustion.
• Methane: Carbon dioxide (CO2) and water (H2O). Also, depending on combustion efficiency, nitrogen oxides (NOx) can be formed. Crucially, uncombusted methane (methane slip) can leak directly into the atmosphere, causing an even more potent warming effect than its CO2 emissions.

From an emissions standpoint at the point of use, hydrogen is vastly superior. That’s not just my opinion; it’s a scientific consensus that really drives its appeal for a decarbonized future.

Beyond the Numbers: Practical Implications and the Energy Transition

The raw numbers give us a foundation, but the real-world impact of methane and hydrogen stretches into our infrastructure, our economy, and our global climate strategy. This isn’t just an academic exercise; it’s about making choices that will profoundly affect generations.

Role of Methane (Natural Gas) in the Current Energy Mix

For better or worse, methane, primarily in the form of natural gas, has been an indispensable part of our energy landscape for decades. It’s fueled power plants, industries, and homes across the United States. It was often touted as a “cleaner” alternative to coal because it produces less CO2 per unit of energy when burned and fewer conventional air pollutants. This perception, however, has been significantly challenged by the growing understanding of methane’s potent greenhouse effect and the prevalence of leaks throughout the natural gas supply chain.

Our existing infrastructure for natural gas – pipelines, distribution networks, storage facilities – is extensive and deeply embedded. Transitioning away from it is a massive undertaking, but the urgency of climate change means we can’t afford to dither. The idea of “natural gas as a bridge fuel” is increasingly scrutinized, especially as the severity of methane leakage becomes clearer. If that bridge is riddled with holes that spew potent greenhouse gases, it might not be leading us to a better place.

Role of Hydrogen (Green Hydrogen) as a Future Decarbonization Tool

Green hydrogen, specifically, is often viewed as a crucial piece of the puzzle for decarbonizing sectors that are hard to electrify. Think heavy industry (steel and cement production), long-haul transportation (shipping and aviation), and seasonal energy storage for renewable grids. Its clean-burning nature at the point of use makes it incredibly attractive.

The vision for hydrogen is not necessarily to replace all natural gas uses directly but to provide a carbon-free energy carrier for specific applications where direct electrification isn’t feasible or cost-effective. For instance, converting existing natural gas pipelines to carry hydrogen or a hydrogen blend is a possibility being explored, though it presents its own technical and safety challenges due to hydrogen’s unique properties.

Storage and Transportation Differences

This is one of the most significant practical differentiators:

• Methane: Relatively easy to transport through pipelines as a gas at moderate pressures, or as Liquefied Natural Gas (LNG) at -162°C. The existing infrastructure is a huge asset.
• Hydrogen: Much harder. Its low volumetric density means it requires high compression (up to 700 bar) or cryogenic liquefaction (-253°C) for efficient storage and transport. This makes it more expensive and technically challenging to build out a new hydrogen infrastructure. Research is looking into ammonia (NH3) or liquid organic hydrogen carriers (LOHCs) as ways to transport hydrogen more easily, converting it back to H2 at the point of use.

The ease of handling methane has historically been a major economic advantage. But as we factor in the true cost of its climate impact, that advantage starts to erode, paving the way for more investment into tackling hydrogen’s logistical hurdles.

Leakage (Methane Slip) – A Critical Concern for Methane

I mentioned methane slip earlier, but it truly deserves to be highlighted as a central issue. Unlike hydrogen, which has negligible direct warming potential if it leaks, methane’s leakage is a direct and powerful contributor to global warming. Experts are increasingly emphasizing that even small percentages of methane leakage from wells, pipelines, compressors, and power plants can undermine any climate benefits of switching from coal to natural gas. This means that stringent regulations and advanced leak detection and repair technologies are absolutely essential if we are to continue using natural gas in any capacity, even as a transition fuel. My opinion is that the focus on curbing methane leakage needs to be as aggressive as our pursuit of renewable energy.

Why the Confusion? Untangling the Narrative

It’s easy to see why folks like my cousin Mark get confused. The “power” of a fuel can mean so many different things. Here are a few reasons why the methane vs. hydrogen narrative often gets muddled:

• Focus on Immediate Energy Output: For consumers, natural gas provides immediate, reliable heat and power. The environmental consequences are often unseen and abstract, whereas the cost and availability of natural gas are very real. Hydrogen, on the other hand, is still largely theoretical for many household applications.
• “Natural Gas” Sounds Clean: The very term “natural gas” sometimes conjures images of something inherently clean or environmentally friendly, especially compared to “dirty coal” or “oil spills.” It’s a marketing triumph for the fossil fuel industry, but it masks the potent methane problem.
• Hydrogen’s Production Challenge: While hydrogen burns clean, the *way it’s produced* is often overlooked. If hydrogen is made from fossil fuels without carbon capture (grey hydrogen), it carries its own significant carbon footprint, even if the end-use is clean. This complexity can make the “clean hydrogen” story harder to grasp for the general public.
• Different Scales of “Power”: We’re comparing energy density for practical use (where methane has volumetric advantages) with climate warming potential (where methane is a serious threat) and gravimetric energy density (where hydrogen excels). It’s comparing apples, oranges, and… well, maybe a particularly potent chili pepper.

Ultimately, the confusion stems from an oversimplified understanding of “power” and a lack of awareness about the distinct environmental profiles of these two gases. It’s not just about how much energy a fuel *has*, but how it *impacts the world* when we use it.

Checklist: Key Considerations for Energy Source Evaluation

When evaluating any energy source, especially in the context of our climate goals, it’s helpful to use a comprehensive checklist. This moves beyond just the “power” and considers the full lifecycle impact.

• Energy Content:
  • Gravimetric (MJ/kg): How much energy per unit of mass?
  • Volumetric (MJ/m³): How much energy per unit of volume?
• Production Method & Emissions:
  • What is the primary source material?
  • What are the greenhouse gas emissions associated with its production? (e.g., grey, blue, green for hydrogen; extraction for methane)
• Transportation & Storage:
  • What infrastructure is required (pipelines, ships, tanks)?
  • What are the energy requirements and costs for transportation?
  • What are the safety considerations?
  • What are the leakage rates and their environmental impact? (e.g., methane slip)
• Combustion/Conversion Byproducts:
  • What are the direct emissions at the point of use (CO2, NOx, particulates)?
  • Are there any other significant environmental impacts (e.g., water use, land use)?
• Global Warming Potential (GWP):
  • How does the gas itself, or its combustion byproducts, contribute to global warming over 20 and 100 years?
• Cost & Economics:
  • What is the current and projected cost of production, delivery, and use?
  • Are there externalized costs (e.g., environmental damage not included in price)?
• Scalability & Availability:
  • Can it be produced and distributed on a large enough scale to meet demand?
  • Are the raw materials abundant and accessible?
• Technological Maturity:
  • Is the technology for production, storage, and use widely developed and commercially viable?

Using a framework like this really helps cut through the noise and provides a more holistic assessment, which is crucial for making informed energy policy decisions.

Frequently Asked Questions

Is methane renewable?

No, generally speaking, methane, as the primary component of natural gas, is not considered a renewable energy source. Natural gas is a fossil fuel, formed over millions of years from the anaerobic decomposition of organic matter beneath the Earth’s surface. Its formation process is far too slow to be replenished on a human timescale, meaning we are consuming it much faster than it can naturally regenerate. Therefore, it’s a finite resource.

There is, however, a category known as “biomethane” or “renewable natural gas (RNG).” This is methane produced from the anaerobic digestion of organic waste materials like agricultural waste, manure, landfill waste, or wastewater. While chemically identical to fossil methane, its source is renewable organic material, and its use can help capture methane emissions that would otherwise enter the atmosphere from these waste streams. So, while fossil methane isn’t renewable, biomethane offers a renewable, carbon-neutral (or even carbon-negative) alternative that can utilize existing natural gas infrastructure.

Can methane be used in fuel cells like hydrogen?

Yes, methane can technically be used in fuel cells, but it’s not as straightforward or as clean as using pure hydrogen. Fuel cells convert chemical energy directly into electrical energy without combustion. While hydrogen fuel cells (PEMFCs, SOFCs, etc.) are well-developed and produce only water as a byproduct, using methane in a fuel cell requires an additional step: reforming. Methane first needs to be converted into hydrogen and carbon monoxide (or CO2) through a process called steam methane reforming (SMR) *before* it can be fed into a fuel cell. This reforming process itself generates CO2 emissions, which negates the “clean” aspect of the fuel cell’s operation if the methane isn’t biomethane and the CO2 isn’t captured.

High-temperature fuel cells, like Solid Oxide Fuel Cells (SOFCs), can sometimes directly reform methane internally, but they still produce CO2. Therefore, while possible, methane fuel cells don’t offer the same zero-emission promise at the point of use as hydrogen fuel cells, making them less attractive for deep decarbonization goals unless coupled with significant carbon capture technology.

What are the main risks associated with methane leakage?

Methane leakage poses two primary, significant risks. First and foremost is its potent contribution to climate change. As we discussed, methane is a far more powerful greenhouse gas than carbon dioxide over the short term (20-year GWP of 80-87x CO2). Even small leaks from oil and gas operations, landfills, or agricultural activities can have a disproportionately large impact on atmospheric warming in the near future, accelerating global warming at a critical time when we need to rapidly slow it down. Reducing methane leaks is often seen as one of the most effective immediate actions we can take to combat climate change.

The second significant risk is safety. Methane is highly flammable and, when mixed with air, can form explosive concentrations. Leaks in enclosed spaces, such as basements or industrial facilities, can lead to dangerous accumulations, posing risks of fires and explosions. This is why natural gas utilities add odorants to methane, allowing people to detect leaks by smell. Large-scale leaks, while less common, can also pose suffocation risks in poorly ventilated areas due to oxygen displacement, though this is secondary to the explosion risk in most practical scenarios.

How does “blue hydrogen” relate to methane?

Blue hydrogen is intrinsically linked to methane because it is produced from natural gas (which is primarily methane) through a process called steam methane reforming (SMR), similar to how “grey hydrogen” is made. The key difference and the reason it’s called “blue” is that the carbon dioxide emissions generated during the SMR process are captured and stored (Carbon Capture, Utilization, and Storage – CCUS) rather than being released into the atmosphere. The idea is to make hydrogen production from fossil fuels significantly lower in carbon intensity than traditional grey hydrogen.

However, blue hydrogen is not entirely emission-free. There are still emissions associated with the extraction and transport of the natural gas itself (methane leakage, as discussed), and the CCUS process itself requires energy and might not capture 100% of the CO2. Therefore, blue hydrogen is seen by some as a transitional technology – better than grey hydrogen, but not as clean as green hydrogen, which is produced using renewable electricity and water, yielding truly zero-emission hydrogen at the point of production.

Why is hydrogen so difficult to store?

Hydrogen is difficult to store primarily due to its extremely low volumetric energy density at ambient conditions. As the lightest element, a significant amount of hydrogen gas occupies a very large volume. To store a useful quantity of energy (i.e., enough to power a car for a decent range or store substantial grid electricity), hydrogen needs to be highly compressed or cooled to cryogenic temperatures.

Specifically, storing hydrogen often involves either: 1) Compressing it to very high pressures, typically 350 to 700 bar (about 5,000 to 10,000 psi), which requires robust, heavy, and expensive tanks. 2) Liquefying it, which means cooling it to an extremely low temperature of -253 degrees Celsius (-423 degrees Fahrenheit). This liquefaction process is highly energy-intensive and requires specialized, insulated cryogenic tanks that are also costly. These challenges make storage a major hurdle for widespread adoption of hydrogen in many applications, driving ongoing research into more efficient and cost-effective storage solutions like solid-state materials or chemical carriers.

Is natural gas just methane?

While often used interchangeably in everyday conversation, natural gas is not *just* methane, but methane is its principal component. Raw natural gas, as it emerges from geological reservoirs, is a mixture of various hydrocarbons and other gases. Typically, methane (CH4) makes up the vast majority, often 70% to 90% or more, depending on the source. Other hydrocarbons commonly found in natural gas include ethane (C2H6), propane (C3H8), and butane (C4H10). These are often separated out and sold as “natural gas liquids” (NGLs) for various uses, like plastics manufacturing or as fuel for grilling (propane).

In addition to hydrocarbons, natural gas can also contain non-hydrocarbon gases like nitrogen (N2), carbon dioxide (CO2), hydrogen sulfide (H2S), and helium. These “impurities” are usually removed during processing to meet pipeline specifications and ensure safety and efficiency. So, while methane is the dominant and most important part of natural gas, it’s more accurate to think of natural gas as a crude mixture from which purified methane is often derived for energy use.