Greta Jimenez
Natural gas is a fossil fuel that is widely used as an energy source. While it is often considered a cleaner alternative to other fossil fuels, natural gas contributes to pollution and climate change through various stages of its production and use. The extraction, transportation, and storage of natural gas can result in leaks, releasing methane and other harmful gases into the atmosphere. During well drilling, natural gas can escape into the air and water, impacting local ecosystems and communities. The combustion of natural gas also produces nitrogen oxides, carbon monoxide, and sulfur dioxide, contributing to air pollution and adverse health outcomes. Additionally, the infrastructure and processing plants associated with natural gas are often located near vulnerable communities, exacerbating the inequitable distribution of pollution's toll. The environmental and health impacts of natural gas highlight the need for a transition to carbon-free energy sources.
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What You'll Learn
- Natural gas leaks from pipelines, wells, storage tanks, and processing plants
- The fracking process uses a lot of water and pollutes streams
- Drilling for natural gas can disturb vegetation, soil, and water resources
- Natural gas is a fossil fuel and a major contributor to climate change
- Natural gas infrastructure is often built near low-income communities and communities of color
Natural gas leaks from pipelines, wells, storage tanks, and processing plants
Underground natural gas pipeline leaks can result in methane buildup and migration through the soil. While the specific behaviour of gas migration is not yet fully understood, studies have investigated the effects of soil properties on methane concentration and migration. Soil texture, permeability, and moisture are factors that influence the movement of methane gas through the soil.
Natural gas can also be released into the atmosphere during and after well drilling. Improperly constructed or failing wells can allow gas to leak into groundwater, leading to contamination. This contamination can further spread through natural or man-made fractures in the subsurface, impacting drinking water sources.
The construction of wells, pipelines, and access roads can cause erosion, with dirt, minerals, and pollutants entering nearby streams. Additionally, the drilling process can produce air pollution and disturb vegetation, soil, wildlife, and water resources. Engines used at well sites and along pipelines produce air pollutants and noise, further contributing to environmental issues.
The environmental and health impacts of natural gas leaks disproportionately affect vulnerable communities, including low-income communities and communities of colour. The placement of high-polluting processing plants near these communities exacerbates the toll of pollution, with residents experiencing adverse health outcomes such as respiratory symptoms, cardiovascular disease, and cancer.
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The fracking process uses a lot of water and pollutes streams
The fracking process, also known as hydraulic fracturing, uses a lot of water. The amount of water used depends on various factors, such as the type of well, rock formation, operator, and the number of portions of the well that are fractured. On average, the fracking process uses around 4 million gallons of water per well, but this can range from 1.5 million to 16 million gallons. This water is typically freshwater sourced from groundwater and surface water resources.
The large volume of water used in fracking poses a strain on water resources and also carries the risk of polluting them. The construction of wells and pipelines can cause erosion, increasing sedimentation in nearby waterways and reducing shade, which can negatively impact aquatic ecosystems and wildlife habitats.
Fracking operations have been associated with water contamination incidents, where toxic chemicals and fracking fluids have leaked or spilled into nearby streams and rivers. A study by the Union of Concerned Scientists found that fracking activities, such as the transportation and storage of chemicals, as well as poor wastewater management, can lead to spills and leaks that reach surface water resources.
In one incident in Ohio in 2014, a fire at a fracking site caused trucks to explode, releasing thousands of gallons of toxic chemicals into a river tributary, resulting in the death of over 70,000 fish. Another study in Michigan identified potential environmental impacts, including increased erosion, aquatic contamination from chemical spills, and habitat fragmentation.
The fracking process, therefore, has significant water pollution implications, affecting both groundwater and surface waterways, including streams. The high water usage and risk of contamination highlight the environmental costs of fracking and the need for improved practices to protect water resources and ecosystems.
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Drilling for natural gas can disturb vegetation, soil, and water resources
Drilling for natural gas can have a detrimental impact on vegetation, soil, and water resources. When geologists explore for natural gas deposits on land, they may disturb vegetation and soil with their vehicles. Drilling a natural gas well on land may require clearing and levelling an area around the well site, which can result in the loss of vegetation. The construction process can also cause erosion, with dirt, minerals, and other harmful pollutants entering nearby streams. This can lead to aquatic contamination and a reduction in surface waters due to lowered groundwater levels.
The drilling process itself produces air pollution and may disturb wildlife and water resources. Natural gas production can generate large volumes of contaminated water, which, if not properly handled, stored, and treated, can pollute land and water sources. Hydraulic fracturing, or fracking, used to extract natural gas, requires large amounts of water, which can impact aquatic habitats and water availability, particularly in water-scarce areas. This process also produces large amounts of wastewater, which may contain chemicals and other contaminants that require treatment before disposal to prevent water pollution.
The extraction and transportation of natural gas can cause soil erosion, sedimentation, vegetation loss, and soil compaction, leading to decreased biodiversity. Oil spills and leaks can contaminate water and soil, causing long-lasting damage to the environment and wildlife. The development of drilling sites, roads, and infrastructure can fragment habitats and disrupt wildlife communication, breeding, and nesting.
The environmental impacts of natural gas drilling disproportionately affect vulnerable communities, including low-income communities and communities of colour. These communities are often located near high-polluting processing plants, bearing the brunt of air and water pollution. Indigenous communities are also significantly impacted, with contamination of water resources and air quality affecting the health and safety of those living near drilling sites.
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Natural gas is a fossil fuel and a major contributor to climate change
Natural gas is a fossil fuel, a mixture of hydrocarbon molecules, mostly methane, that is used to power about 30% of energy demand in the United States. It is formed from ancient plant material deposited in an oxygen-poor environment and cooked over millions of years by heat from the earth. The type of plant and the extent of the cooking determine whether the end product is coal, oil, or gas.
Natural gas is a major contributor to climate change, despite being considered a cleaner energy source compared to other fossil fuels. When burned, it emits fewer emissions of nearly all types of air pollutants and carbon dioxide (CO2) compared to burning coal or petroleum products to produce an equal amount of energy. However, it still releases CO2 and other pollutants such as nitrogen oxides (NOx), sulfur dioxide (SO2), and small amounts of sulfur, mercury, and particulates.
The combustion of natural gas also releases methane (CH4), a potent greenhouse gas. While methane breaks down into CO2 within about 20 years, it is 80 times more harmful in terms of trapping heat in the short term. Leaks from pipelines, wells, storage tanks, and processing plants during the extraction, production, and transportation of natural gas can result in significant methane emissions, reducing or eliminating the climate benefits of natural gas over other fossil fuels.
Additionally, the production and use of natural gas can lead to other forms of pollution. The construction of well pads, pipelines, and access roads can cause erosion and sedimentation, contaminating nearby streams and aquatic ecosystems. Improperly constructed or failing wells can allow gas, including methane and volatile organic compounds, to leak into groundwater, affecting drinking water sources. Natural gas infrastructure, such as processing plants, is often located near low-income communities and communities of color, disproportionately impacting vulnerable populations with air and water pollution.
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Natural gas infrastructure is often built near low-income communities and communities of color
Natural gas is a fossil fuel that emits pollution and contributes to climate change. It is a mixture of hydrocarbon molecules, primarily methane, which is a potent greenhouse gas. While burning natural gas emits less carbon dioxide (CO2) than other fossil fuels, it still releases methane, carbon monoxide, nitrogen oxides (NOx), and sulfur dioxide (SO2). The combustion of natural gas also produces small amounts of sulfur, mercury, and particulate matter.
The production and use of natural gas can have significant environmental and health impacts. Well drilling and pipeline construction can disturb vegetation, soil, and water resources, and produce air pollution. The process of hydraulic fracturing, or fracking, uses large amounts of water, leading to water scarcity and pollution of streams. Improperly constructed or failing wells can contaminate groundwater with methane, volatile organic compounds, and fracking fluids.
The pollution and health risks associated with natural gas infrastructure disproportionately affect low-income communities and communities of color. Natural gas processing plants, which produce high levels of air pollution, are typically built near homes in these vulnerable communities. Studies have found that residents living close to natural gas well sites are at greater risk of adverse health outcomes from air pollution, including respiratory problems, cardiovascular disease, and cancer.
The siting of natural gas infrastructure near low-income communities and communities of color is often deliberate, as industry leverages its political, economic, and regulatory power to drill in areas where land and labor are cheaper. This practice exacerbates existing environmental injustices and contributes to health disparities in these communities.
Furthermore, the investment in natural gas infrastructure creates a financial incentive to continue using natural gas for years to come, potentially delaying the transition to carbon-free energy sources such as wind and solar power. While natural gas has been promoted as a bridge" fuel to a cleaner energy system, recent research suggests that methane leaks during extraction, production, and transportation may eliminate its climate benefits compared to other fossil fuels.
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Frequently asked questions
Natural gas is a fossil fuel and a major contributor to air pollution. The combustion of natural gas produces nitrogen oxides (NOx), which are precursors to smog, and small amounts of sulfur, mercury, and particulates. Burning natural gas also emits carbon monoxide, nitrogen oxides (NOx), and sulfur dioxide (SO2).
Natural gas production can produce large volumes of contaminated water. This water needs to be properly handled, stored, and treated so that it does not pollute land and other water sources. The construction process can also cause erosion of dirt, minerals, and other harmful pollutants into nearby streams.
Natural gas emits pollution and is a major contributor to climate change. Methane, the primary component of natural gas, is a potent greenhouse gas. While burning natural gas emits less CO2 than other fossil fuels, it still emits CO2.
