Fossil fuels global warming
Pro Research Analysisby 
Searched over 200M research papers
The Impact of Fossil Fuels on Global Warming
Fossil Fuels and Greenhouse Gas Emissions
The combustion of fossil fuels is the largest human source of global greenhouse gas emissions, releasing over 30 billion tonnes of carbon dioxide (CO2) into the atmosphere annually . This significant contribution to atmospheric CO2 levels is a primary driver of global warming. The continued use of fossil fuels is incompatible with the temperature goals set by the Paris Agreement, which aims to keep global warming well below 2°C and pursue efforts to limit it to 1.5°C Lazarus2018Welsby2021.
Fossil Fuel Supply and Climate Policy
Efforts to reduce fossil fuel combustion have traditionally focused on demand-side measures such as promoting energy efficiency, low-carbon technologies, and carbon pricing. However, these measures have not been sufficient to align fossil fuel use with the targets of the Paris Agreement . There is a growing recognition of the need to address the supply side of the fossil fuel economy. Continued investment in fossil fuel exploration and infrastructure makes achieving global climate protection objectives more challenging .
The Abundance of Fossil Fuels and Climate Mitigation
Countries with large domestic fossil fuel reserves have seen significant increases in fossil fuel demand, with only moderate or no increases in renewable energy use. This trend poses a substantial threat to climate change mitigation efforts . To comply with the Paris Agreement's temperature goals, fossil-fuel-rich economies must either leave fossil fuels in the ground or implement carbon capture and storage (CCS) technologies . Immediate and disruptive changes to fossil fuel use and investments in non-carbon-emitting technologies are required to limit global warming to well below 2°C .
Unextractable Fossil Fuels
To limit global warming to 1.5°C, nearly 60% of oil and fossil methane gas, and 90% of coal must remain unextracted by 2050 . This necessitates a global decline in oil and gas production by 3% annually until 2050, rendering many planned fossil fuel projects unviable . Similarly, to keep warming below 2°C, a third of oil reserves, half of gas reserves, and over 80% of coal reserves should remain unused from 2010 to 2050 .
Future Projections and Residual Emissions
Projections indicate that if fossil fuels are exploited at a rate limited only by geological availability, CO2 concentrations could increase to about 480 ppm, with global-mean temperature increases reaching up to 1.6°C by 2200 . Even with stringent long-term policies, cumulative residual CO2 emissions from fossil fuels are expected to remain high, necessitating significant CO2 removal to achieve the 1.5°C goal .
Conclusion
The continued reliance on fossil fuels poses a significant challenge to global warming mitigation efforts. Both demand-side and supply-side measures are crucial to reducing fossil fuel use and achieving the temperature goals of the Paris Agreement. Immediate and substantial changes in energy policies, investments in renewable energy, and the implementation of CCS technologies are essential to limit global warming and mitigate its long-term impacts.
Sources and full results
Most relevant research papers on this topic