Mercedes Mullins
Fossil fuels, including coal, oil, and natural gas, have been the primary energy source for over a century, powering vehicles, businesses, and homes. However, the burning of these fuels releases large amounts of carbon dioxide, a greenhouse gas that contributes to global warming and climate change. The consequences of this are significant, including rising sea levels, extreme weather events, biodiversity loss, and negative impacts on human health. The extraction and refinement processes of fossil fuels also cause environmental damage and pollution, affecting the land, water, and air quality. The transition to clean and renewable energy sources is seen as a critical challenge and opportunity to address the growing threat of climate change and its impact on future generations.
| Characteristics | Values |
|---|---|
| Global fossil fuel consumption since 1950 | Increased eight-fold |
| Global fossil fuel consumption since 1980 | Doubled |
| Types of fossil fuels | Coal, oil, and gas |
| Global primary energy from fossil fuels | Four-fifths |
| Fossil fuel with the most CO2 emissions | Coal |
| U.S. fossil fuel consumption in 2023 | 77.2 quadrillion British thermal units |
| U.S. fossil fuel consumption peak year | 2018 |
| U.S. fossil fuel consumption peak amount | 81.28 quadrillion British thermal units |
| U.S. primary energy production from fossil fuels in 2023 | 84% |
| U.S. petroleum consumption in 1978 | 49% (38 quads) |
| U.S. petroleum consumption in 2023 | 38% (35 quads) |
| U.S. energy consumption from oil | One-third |
| U.S. energy consumption from natural gas | 38% |
| U.S. energy consumption from coal in 2020 | 19% |
| U.S. energy consumption from renewable sources in 2023 | 9% (8.24 quads) |
| U.S. energy consumption from renewable sources in 2020 | 20% |
| Global carbon capture and storage plants in 2020 | 26 |
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What You'll Learn
Fossil fuel consumption by country
Fossil fuels—oil, coal, and natural gas—remain the most widely used energy source worldwide, despite the increasing popularity of renewable energy. In 2017, they accounted for 81% of global energy consumption, a figure that decreased only slightly to 81.5% in 2022. In 2023, fossil fuel consumption reached a new record high, driven largely by China and the US, which together were responsible for almost half (47%) of global fossil fuel consumption.
In 2023, China consumed 140 exajoules of fossil fuels, the US consumed 76 exajoules, and India was third with 35 exajoules. China is the largest coal consumer, accounting for 56% of global consumption. The US is the largest oil consumer, with over 19.1 million barrels consumed per day in 2022. The US also consumed 32.2 trillion cubic feet of natural gas that year, 1.6 trillion cubic feet more than in 2021.
Several other countries also have high rates of fossil fuel consumption. Russia consumed 3.67 million barrels of oil per day in 2021, accounting for 4% of the world's total consumption. It is also one of the largest consumers of natural gas, with 408 billion cubic meters consumed in 2022. Japan, which has a territory of just over 145,000 square miles, is the fifth-largest consumer of fossil fuels. In 2022, it consumed over 151 million metric tons of oil and imported 180.3 million tons of coal. Korea, where oil is the primary energy source, imported 960 million barrels of crude oil in 2021, along with 126 million tons of coal. Germany, meanwhile, consumed over 2 million barrels of oil per day and 2.3 exajoules of coal in 2022.
Canada, which heavily relies on oil for its transportation and industrial sectors, consumed upwards of 98 million metric tons of oil in 2022. The country also consumed 390 petajoules of coal and 101 billion cubic meters of natural gas that year. While Canada has made efforts to transition to renewable energy sources, it still consumed large amounts of fossil fuels in 2022.
Some smaller countries have very high per capita fossil fuel consumption rates. For example, Equatorial Guinea, Estonia, Singapore, Qatar, Trinidad and Tobago, the United Arab Emirates, and Kuwait consume 10 or more tons of fossil fuels per person per year.
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The environmental impact of fossil fuels
Fossil fuels have significant environmental impacts, and their use results in substantial climate, environmental, and health costs that are often not reflected in market prices. These costs are known as externalities and are present at every stage of the fossil fuel supply chain, from extraction and transportation to refining and burning.
One of the primary environmental impacts of fossil fuels is air pollution. Burning fossil fuels emits greenhouse gases such as carbon dioxide and nitrous oxide, which trap heat in the Earth's atmosphere and contribute to climate change. The combustion of fossil fuels also releases hazardous air pollutants, including sulfur dioxide, nitrogen oxides, particulate matter, carbon monoxide, and mercury. These pollutants have harmful effects on both the environment and human health, increasing the risk of respiratory diseases, cardiovascular issues, asthma, and even premature death. Globally, fossil fuel pollution is responsible for one in five deaths, with communities of color and low-income communities disproportionately affected.
Additionally, fossil fuels contribute to water pollution. Oil spills and fracking fluids contaminate water sources, and the wastewater generated by fracking often contains toxic substances such as arsenic, lead, chlorine, and mercury. Power plants that burn fossil fuels also impact local ecosystems by withdrawing freshwater from rivers and lakes for cooling, returning warm water that can stress local species.
The extraction and transportation of fossil fuels can also lead to environmental damage. Mining for coal, a common fossil fuel, can be dangerous for miners and destructive to wildlife habitats. Surface mining, or strip mining, removes layers of soil and rock, causing significant harm to the environment. Oil extraction can result in the displacement of indigenous communities, human rights abuses, and the disruption of traditional livelihoods and cultural practices. Furthermore, pipelines and refineries are prone to leaks and spills, releasing oil and gas into the environment and contributing to pollution.
The environmental impacts of fossil fuels extend to climate change, with far-reaching effects on ecosystems. The burning of fossil fuels is the primary cause of current climate change, altering Earth's ecosystems and contributing to issues such as wildfires, droughts, extreme temperatures, and flooding. The release of greenhouse gases intensifies the greenhouse effect, increasing the Earth's average air temperatures and causing changes in snow and ice melt patterns.
To address the environmental impacts of fossil fuels, there is a growing need to transition to cleaner and more sustainable energy sources, reduce reliance on fossil fuels, and promote energy efficiency. Increasing the social cost of carbon (SCC) and implementing policies such as a federal clean electricity standard or a carbon price can help mitigate the environmental and climate consequences of fossil fuel consumption.
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The health impact of fossil fuels
Burning fossil fuels has significant health costs that are not reflected in market prices. Fossil fuels produce hazardous air pollutants, including particulate matter, which are harmful to human health. These pollutants are linked to a range of health issues, including aggravated asthma, respiratory infections, lung cancer, heart disease, stroke, cognitive impairment, and premature death. Public health researchers are beginning to conclude that there is no safe level of air pollution, and even small doses can trigger health problems.
The combustion of fossil fuels also produces cancer-causing ultra-fine particles and aromatic hydrocarbons. Benzene, for example, has been linked to childhood leukemia and blood disorders, while formaldehyde is a known carcinogen. Globally, air pollution from fossil fuels is responsible for one in five deaths, with new research doubling previous estimates. In the United States alone, 350,000 premature deaths in 2018 were attributed to fossil fuel-related pollution, and the annual cost of the health impacts of fossil fuel-generated electricity is estimated to be up to $886 billion.
In addition to air pollution, fossil fuels also contribute to water pollution. Oil spills and fracking fluids can contaminate groundwater and drinking water with toxic substances such as arsenic, lead, chlorine, and mercury. Fracking, a controversial method of extraction, creates a host of environmental and health problems, including air and water pollution. The burning of fossil fuels also contributes to ocean acidification, which impacts marine life and coastal communities.
The health impacts of fossil fuels disproportionately harm communities of color and low-income communities. Black and Hispanic Americans, for instance, are exposed to significantly more particulate matter pollution than they produce. A worldwide phase-out of fossil fuels would prevent the premature deaths of 3 to 4 million people each year, and aggressive climate policies could avert millions of air-pollution deaths in the long term.
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The future of fossil fuels
Fossil fuels have been the dominant source of energy in the US for over a century. However, the future of fossil fuels is uncertain as the world grapples with the environmental and health impacts of their consumption.
Fossil fuel consumption has increased significantly in the past decades, with global consumption doubling since 1980. Oil and gas consumption continue to grow, while coal consumption is declining in many parts of the world due to the increasing adoption of natural gas and renewable energy sources. In the US, fossil fuels accounted for about 84% of primary energy production in 2023, with petroleum, natural gas, and coal being the main sources. The transportation sector is the largest consumer of oil, while natural gas is the top source of energy for electricity generation.
The environmental impact of fossil fuels is significant. Burning fossil fuels releases carbon dioxide, a greenhouse gas that contributes to global warming and climate change. Additionally, the extraction and transportation of oil pose major environmental and safety risks. Coal is the most polluting energy source in terms of CO2 emissions and local air pollution. The fossil fuel industry also impacts landscapes and ecosystems, requiring vast stretches of land for infrastructure and processing facilities.
To mitigate the environmental impact of fossil fuels, there is a growing focus on transitioning to renewable energy sources. In 2023, renewable energy production and consumption reached record highs in the US, driven by increases in solar and wind energy production. Hydropower, biomass, wind, geothermal, and solar energy are all reliable sources of renewable energy that are increasingly contributing to the US energy mix. While natural gas is projected to meet a growing share of US energy demand due to its low prices, the overall trend suggests a gradual shift away from fossil fuels towards more sustainable and environmentally friendly alternatives.
Carbon capture and storage (CCS) technology is also being explored to reduce the carbon emissions associated with fossil fuel use. While CCS plants are expected to increase in number, they are not a solution to the other harmful pollutants released by burning fossil fuels. The future of fossil fuels lies in a gradual phase-out, replaced by renewable and low-carbon energy sources that can meet the world's energy demands while mitigating the environmental and health impacts associated with fossil fuel consumption.
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Fossil fuel extraction
Fossil fuels are non-renewable sources of energy formed from the organic matter of plants and microorganisms that lived millions of years ago. The fossil fuels that are most commonly extracted are coal, oil, and natural gas.
The extraction of fossil fuels involves processes such as surface mining, underground mining, vertical drilling, horizontal drilling, and hydraulic fracturing (fracking). In the case of coal, it is often extracted through underground mining, while oil and natural gas are typically accessed through vertical drilling.
Oil, or crude oil, is a liquid fossil fuel composed primarily of hydrocarbons (hydrogen and carbon compounds). It is found in underground reservoirs, the cracks and crevices of sedimentary rock, or in tar sands near the Earth's surface. Drilling is the most common method used to extract oil, whether on land or at sea. However, in the case of tar sands oil, strip mining or open-pit mining is employed. Once extracted, oil is transported to refineries and transformed into usable fuels such as gasoline, propane, kerosene, and jet fuel.
Natural gas, being lighter and in a gaseous state at moderate temperatures, is often found above oil deposits. The extraction of natural gas and conventional oil involves piercing the trap, which releases them due to high pressure (primary recovery). This is followed by injecting water or gas to increase pressure and force out more fossil fuels (secondary recovery). To maximize extraction, enhanced oil recovery techniques (tertiary recovery) are used, such as applying heat or injecting carbon dioxide to make the oil thinner and easier to extract.
The extraction of fossil fuels has significant environmental and health impacts. Mining, drilling, and burning fossil fuels contribute to air and water pollution, global warming, and the degradation of landscapes and ecosystems. The transition to clean and renewable energy sources is crucial to mitigate these negative consequences.
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Frequently asked questions
Fossil fuels are fuels made from the decomposition of carbon-based organisms that died millions of years ago. There are three types of fossil fuels: coal, oil, and natural gas.
Burning fossil fuels releases large amounts of carbon dioxide, a greenhouse gas, into the atmosphere. This leads to global warming and climate change, causing extreme weather events, rising sea levels, biodiversity loss, and species extinction. Additionally, the extraction and refining of fossil fuels can result in air and water pollution, further damaging the environment.
Air pollution from burning fossil fuels contributes to respiratory issues, cancer, heart disease, and premature death. Globally, fossil fuel pollution is linked to one in five deaths. It disproportionately impacts marginalized communities, including racialized, low-income, and indigenous groups.
The primary alternative to fossil fuels is renewable energy sources such as solar, wind, and hydroelectric power. A transition to clean energy is necessary to mitigate the environmental and health impacts of fossil fuel consumption.
