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The 58 pages that link to Methane, each with the reason it gives.

• Carbon dioxideCompared with: Like CO₂, methane is a greenhouse gas, but its molecular structure and atmospheric behavior differ.

• Greenhouse gas emissionsBroader topic: It is a potent greenhouse gas released by energy, agriculture, waste, and natural sources.

• HydrogenCompared with: Methane contains hydrogen in a carbon-based fuel and is often used to produce elemental hydrogen.

• Tetrahedral molecular geometryBroader topic: Its four equivalent C–H bonds form the textbook tetrahedral shape.

• Global warming potentialBroader topic: Its high near-term GWP makes methane emissions consequential in short-horizon comparisons.

• NeptuneRelated: Methane in Neptune’s upper atmosphere absorbs red wavelengths and contributes to its blue appearance.

• Blue carbonCompared with: Some carbon-rich wetlands emit methane, which can offset part of their climate benefit.

• Carbon footprintRelated: Its substantial warming impact can make small emissions important in a footprint.

• Valence bond theoryBroader topic: Its tetrahedral bonds are commonly described using carbon hybrid orbitals.

• Liquefied natural gasBroader topic: Methane makes up most LNG and determines its principal combustion and storage properties.

• Greenhouse gasBroader topic: Its strong near-term warming effect contrasts with its shorter atmospheric lifetime than carbon dioxide.

• Methane emissionsNarrower topic: The emitted gas absorbs infrared radiation and drives the warming attributed to these releases.

• CompostingRelated: Well-aerated composting can avoid some methane emissions associated with anaerobic decay.

• MethanogenesisRelated: It is the product of methanogenesis and a potent greenhouse gas.

• Atmospheric lifetimeBroader topic: Its finite lifetime makes methane emissions responsive to changes in atmospheric chemistry and emissions.

• ButaneCompared with: Methane is gaseous at ambient conditions, unlike pressurized liquid butane.

• TitanRelated: On Titan’s cold surface, methane can condense into rain and flow as a liquid.

• EthaneCompared with: Compared with ethane, methane has one fewer carbon and no carbon–carbon bond.

• MoleculeBroader topic: Its tetrahedral shape demonstrates how four bonds arrange around a central atom.

• Permafrost carbon cycleRelated: Anaerobic decomposition in thawed soils can emit methane, especially from wet ground.

• CompostRelated: Poorly aerated organic waste can produce methane, while well-managed composting limits anaerobic conditions.

• Hydroxyl radicalRelated: Atmospheric ·OH initiates the main chemical removal pathway for methane.

• Bond angleBroader topic: Its H–C–H angles are close to the tetrahedral value of 109.5°.

• PropaneCompared with: Methane is a lighter gaseous fuel often compared with propane for heating and cooking.

• VSEPR theoryBroader topic: Four equivalent bonding domains give methane its tetrahedral shape.

• BiogasRelated: Methane provides most of biogas’s energy content.

• Hybrid orbitalBroader topic: Its four equivalent C–H bonds are classically described using carbon sp3 hybrids.

• ManureRelated: Stored manure can generate methane when oxygen is scarce.

• Lake KivuNarrower topic: Methane is the fuel extracted from Kivu’s deep water.

• Methyl groupRelated: Removing one hydrogen from methane leaves the methyl group.

• AcetyleneCompared with: It is a common gaseous fuel without acetylene’s carbon–carbon multiple bond.

• Animal nutritionRelated: Ruminant diets can alter methane emissions as well as animal productivity.

• Arctic methane emissionsNarrower topic: This molecule is the emitted gas whose sources and atmospheric effects define the topic.

• Faint young Sun paradoxRelated: Methane produced by early microbes may have added warming alongside carbon dioxide.

• LNG carrierRelated: It is the principal cargo molecule and sets LNG’s approximate boiling temperature.

• Mine safetyRelated: Accumulated methane can ignite or explode in underground coal mines.

• Oxygenation of Earth's atmosphereRelated: Changes in methane may have linked rising oxygen to early climate shifts.

• Permafrost carbon feedbackRelated: Anaerobic decomposition can release methane, strengthening near-term warming.

• Atmosphere of TitanRelated: Methane supplies Titan’s clouds, rain, and surface hydrocarbons.

• Air–sea gas exchangeBroader topic: Marine methane release can transfer this greenhouse gas from ocean to atmosphere.

• YedomaRelated: Waterlogged thawed yedoma can support microbial methane production.

• Anthropogenic climate changeRelated: It adds substantial near-term warming despite shorter atmospheric persistence than carbon dioxide.

• Atmosphere of PlutoRelated: Methane is a trace atmospheric gas and a constituent of Pluto’s surface ices.

• Hydrogen safetyCompared with: Comparing methane with hydrogen clarifies differences in dispersion, flame visibility, and energy per volume.

• Huronian glaciationRelated: Its atmospheric decline is one proposed trigger for the cooling associated with Huronian ice.

• Lost City Hydrothermal FieldRelated: Methane in Lost City fluids forms through reactions associated with serpentinization.

• Magic acidRelated: Its protonation in magic acid helped demonstrate the mixture's extraordinary acidity.

• Methane clathrateNarrower topic: Methane is both the trapped guest molecule and the potential product of extraction.

• Rotational–vibrational spectroscopyBroader topic: Its symmetry and multiple vibrational modes produce characteristic infrared band patterns.

• SyngasRelated: It is a common feedstock for syngas production by reforming.