Mercedes Mullins
The use of fossil fuels in agriculture is a significant contributor to global greenhouse gas emissions. Modern agriculture is heavily dependent on fossil fuels, which are used directly for crop management and indirectly for fertilizers, pesticides, and machinery production. This has led to a major increase in food production since the 1960s. Food systems account for at least 15% of global fossil fuel use annually, and the fossil fuel industry has a vested interest in maintaining this status quo. Agriculture is becoming more dependent on fossil fuels, and the prices of these fuels directly affect the costs of tillage and fertilizers. As a result, the agriculture industry faces challenges in optimizing energy inputs and reducing greenhouse gas emissions while also improving yields to meet the growing global demand for food.
| Characteristics | Values |
|---|---|
| Percentage of global fossil fuel use by food systems | 15% |
| Fossil fuel use in agriculture | Direct: Tillage, crop management, livestock, rice production Indirect: Fertilizers, pesticides, machinery production |
| Fossil fuel use in industrial food systems | Energy-intensive, dependent on fossil fuels across the value chain |
| Fossil fuel use in agriculture and food production impact | GHG emissions, soil degradation, water quality, biodiversity loss |
| Fossil fuel use in agriculture and future outlook | Need for low-carbon practices, agroecology, regenerative approaches, renewable technologies |
| Fossil fuel industry spending | USD 164 billion (2016-2023) in the US for new facilities and expansion |
| Agriculture's role in GHG emissions reduction | Net soil carbon sequestration in agricultural lands could offset 4% of annual global human-induced GHG emissions |
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What You'll Learn
Agriculture's fossil fuel dependence
Agriculture is heavily dependent on fossil fuels. This dependence is both direct, for crop and livestock management, and indirect, for fertilizers, pesticides, and machinery production. This dependence has contributed to major increases in food production since the 1960s. However, it has also led to significant environmental impacts, including increased greenhouse gas emissions and the degradation of soils, water quality, and biodiversity.
Direct energy use in agriculture includes tillage and crop management. The energy embodied in tractors, buildings, and infrastructure necessary for agriculture and food supplies is likely to continue growing as producers invest in infrastructure to increase yields and compete in global markets. Modern agriculture's dependence on fossil fuels for direct energy use is projected to increase as yields and the inputs needed to support those yields increase.
Indirect energy use in agriculture includes the production of fertilizers, pesticides, and machinery. Fossil fuels, particularly natural gas and coal, are used in nitrogen fertilizer production, which can account for more than 50% of total energy use in commercial agriculture. The overuse of fossil fuel-based agrochemicals in food production has led to calls for a shift to agroecological production systems that are less reliant on external inputs and more focused on environmentally friendly alternatives.
The cost of agricultural production is influenced by fossil fuel prices. Fossil energy prices directly impact the costs of tillage and fertilizers, and they indirectly affect almost all aspects of agricultural production, including the prices of food for the end consumer. The production costs of some agricultural commodities are more sensitive to changing fossil fuel prices than others, and the options for mitigating the risks of price volatility differ among production chains.
Agriculture contributes significantly to global greenhouse gas emissions. In 2019, agriculture, forestry, and other land use practices accounted for 22% of global greenhouse gas emissions, second only to the industry sector. Greenhouse gas emissions from agriculture come from livestock, agricultural soils, rice production, and deforestation. While agriculture is part of the solution to reducing greenhouse gas emissions, it is not a replacement for the necessary phase-out of fossil fuels.
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Livestock and fossil fuels
Livestock is a significant contributor to greenhouse gas emissions and climate change. According to the US Environmental Protection Agency (EPA), agricultural greenhouse gas emissions come from livestock such as cows, agricultural soils, and rice production. Livestock, especially ruminant animals like cows and goats, produce methane and nitrous oxide as they digest their food.
Methane emissions from livestock are part of a natural biological cycle called the biogenic carbon cycle. In this cycle, carbon molecules continuously cycle between the atmosphere, living organisms, and soil in different forms. Unlike methane emissions from fossil fuel use, livestock methane does not increase the total atmospheric carbon. Instead, the carbon is part of a cycle.
However, methane is a much more potent greenhouse gas than carbon dioxide. While methane from livestock returns carbon to the atmosphere, methane from fossil fuels releases new carbon that was previously stored in the Earth's crust. This new carbon contributes to warming the planet. Therefore, reducing methane emissions from livestock and transitioning to sustainable renewable energy sources are crucial steps in mitigating climate change.
The livestock industry's dependence on fossil fuels also contributes to greenhouse gas emissions. Fossil fuels are used in various stages of livestock production, including feed production, transportation, and refrigeration. The overuse of fossil fuel-based agrochemicals and the lack of focus on eliminating their use in food production contribute to emissions. Shifting to agroecological production systems and low-carbon practices can help reduce the industry's reliance on fossil fuels and mitigate its environmental impact.
Additionally, the production and management of livestock manure generate greenhouse gases. Addressing this issue is essential to reducing the carbon footprint of the livestock industry and mitigating climate change.
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Fossil fuel use in crop management
Fossil fuels are used extensively in agriculture, and the industry is highly dependent on fossil fuels for crop and livestock production. In 2019, annual emissions from energy use in agriculture were about 523 million tonnes (Mt CO2eq yr-1), and when including electricity, they were 1029 Mt CO2eq yr-1, a 7% increase from 1990. This shows a clear trend of increasing fossil fuel use in agriculture.
Crop management, in particular, relies on fossil fuels, either directly or indirectly. Fossil fuels are used for tillage, cultivation, harvesting, and crop drying. The use of tractors and other machinery in these processes contributes to fossil fuel consumption. Additionally, energy-intensive inputs such as nitrogen fertilizers and pesticides, commonly used in crop management, are fossil fuel-based and contribute significantly to greenhouse gas emissions.
The use of fossil fuels in crop management has led to increased energy efficiency and higher yields. However, it has also resulted in environmental concerns due to the associated greenhouse gas emissions. Agriculture's dependence on fossil fuels means that food prices are coupled with fossil energy prices, impacting food affordability.
To address these challenges, there is a growing focus on renewable energy sources and sustainable practices in agriculture. Agroecological production systems, for example, offer a more environmentally friendly approach by utilizing bio-fertilizers and on-farm pest management practices. Additionally, integrating forestry and biomass cultivation on farms can help minimize agricultural GHG emissions and provide alternative energy sources.
While agriculture plays a role in reducing fossil fuel reliance, it is not meant to be a replacement for the phase-out of fossil fuels. Instead, a comprehensive approach involving policy changes, technological advancements, and renewable energy integration is necessary to transition towards a more sustainable and low-carbon future.
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Fossil fuel use in machinery
Fossil fuels are extensively used in agriculture, with food systems accounting for at least 15% of global fossil fuel consumption annually. This includes the use of fossil fuels in machinery and equipment used for farming and agricultural processes.
Agricultural machinery, such as tractors and other vehicles, directly burns fossil fuels for energy. The combustion of diesel and gasoline to power these machines contributes to greenhouse gas emissions. Additionally, the production and use of nitrogen-based fertilizers and pesticides, which are energy-intensive processes, further increase the fossil fuel dependence of agricultural machinery.
The price of fossil fuels, such as oil, natural gas, and coal, influences the cost of agricultural production. As fossil fuel prices fluctuate and become more volatile, there may be a drive to diversify energy sources or reduce overall energy intensity in agriculture. However, as yields and input requirements increase, agriculture's dependence on fossil fuels for machinery and equipment is likely to grow.
The agrochemical industry, dominated by a few firms, has a vested interest in maintaining the status quo of fossil fuel-dependent industrial food systems. This includes the use of fossil fuel-based inputs and machinery. However, there is a growing recognition of the need to transition to sustainable and low-carbon practices, such as agroecology and the use of bio-fertilizers, to reduce the environmental impact of agriculture and its contribution to climate change.
Overall, while agricultural machinery and equipment contribute to the sector's fossil fuel consumption, there are ongoing discussions and efforts to reduce this dependence and promote more sustainable practices.
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Fossil fuel subsidies for agriculture
Fossil fuel subsidies are defined as "any government action that lowers the cost of fossil fuel energy production, raises the price received by energy producers, or lowers the price paid by energy consumers." Fossil fuel subsidies are a significant contributor to global carbon emissions and climate change. According to the International Monetary Fund, fossil fuel subsidies totalled around $1.5 trillion in 2022 under a narrow definition, and $7 trillion under a more expansive definition. The true cost of fossil fuel subsidies is even higher when considering the negative externalities such as health costs and environmental impacts.
The agriculture industry is highly dependent on fossil fuels, with food systems accounting for at least 15% of global fossil fuel use annually. This includes the use of fossil fuels in agrochemicals, transportation, and energy-intensive industrial food systems. The overuse of fossil fuel-based agrochemicals and the lack of focus on transitioning to sustainable practices contribute to the sector's high emissions.
While some argue that fossil fuel subsidies benefit consumers by keeping prices low, they have significant drawbacks. Subsidies promote inefficient allocation of resources, hinder economic growth, and encourage pollution and climate change. Additionally, they disproportionately benefit higher-income households and can disadvantage renewable energy sources. The removal of fossil fuel subsidies is crucial for transitioning to a low-carbon future and meeting climate goals.
However, removing fossil fuel subsidies can be complex due to potential impacts on vulnerable populations. While the consensus is that the rich benefit most from fossil fuel subsidies, removing them may indirectly affect poor people through price increases in essential goods like food. Additionally, some governments argue that subsidies protect citizens from volatile international energy prices and energy security concerns. Nevertheless, keeping prices artificially low through subsidies can lead to wasteful consumption and hinder investments in sustainable development.
To address these challenges, a collaborative international effort is necessary. Countries like New Zealand are taking a lead by supporting the removal of inefficient fossil fuel subsidies and advocating for a level playing field in energy markets. By sharing knowledge and best practices, countries can work together to phase out fossil fuel subsidies while ensuring a just transition that minimizes negative impacts on vulnerable populations.
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Frequently asked questions
Yes, industrial agriculture uses fossil fuels.
Fossil fuels are used directly for tillage and crop management and indirectly for fertilizers, pesticides, and machinery production.
Fossil fuels are used in industrial agriculture to increase yields and support the inputs needed for those yields.
The use of fossil fuels in industrial agriculture contributes to greenhouse gas emissions, soil degradation, water quality degradation, and biodiversity loss.
Alternatives to fossil fuels in industrial agriculture include adopting renewable energy sources, electrifying transport, and transitioning to agroecological production systems that are less reliant on external inputs.
