The role of fossil fuels in climate change is fully detailed in https://www.ipcc.ch with a useful history at https://history.aip.org/climate/index.htm and further questions answered at https://skepticalscience.com

Fossil fuels are the main energy source for most of the world, but they also have a significant role in climate change. Fossil fuels are formed from the remains of ancient plants and animals buried under sediment layers millions of years ago. When we burn fossil fuels, such as coal, oil, and gas, we release carbon dioxide (CO2) and other greenhouse gases into the atmosphere. These gases trap heat and cause the Earth’s temperature to rise, which leads to various impacts on the environment and human well-being.

According to the web search results, fossil fuels are responsible for about 80% of global CO2 emissions, the main driver of global warming. The Intergovernmental Panel on Climate Change (IPCC) has warned that we need to limit global warming to 1.5°C above pre-industrial levels by 2100 to avoid the worst effects of climate change. However, this requires reducing fossil fuel emissions by at least 45% by 2030 and reaching net zero emissions by 2050. This means we must phase out fossil fuels and switch to renewable energy sources like solar, wind, hydro, and biomass.

However, this does not mean we must stop using fossil fuels completely. There are some ways that we can use fossil fuels more efficiently and sustainably, such as:

· Carbon capture and storage (CCS): This technology captures CO2 from power plants or industrial facilities that use fossil fuels and stores it underground or elsewhere. This reduces the amount of CO2 that is released into the atmosphere.

· Methane management: Methane is another greenhouse gas produced during the extraction, processing, transportation, and use of fossil fuels. It has a much higher warming potential than CO2 over a short period. By capturing methane from these sources or preventing it from escaping into the air or water, we can reduce its impact on climate change.

· Fossil fuel efficiency: This means using less energy or improving its quality when using fossil fuels for various purposes. For example, we can use more efficient appliances or vehicles that consume less fuel or electricity, better insulation or ventilation systems that reduce heat loss or gain, smart grids or demand response systems that balance supply and demand, etc.

· Fossil fuel diversification: This means using different types of fossil fuels with different characteristics or qualities for different applications. For example, we can use coal with lower sulfur content for power generation, oil with lower viscosity for transportation, natural gas with higher methane content for heating, etc.

These are some possible ways to reduce our dependence on fossil fuels while still meeting our energy needs. However, these solutions have challenges and limitations, such as high costs, technical difficulties, environmental risks, social impacts, etc. Therefore, it is important to consider all sustainability aspects when deciding about energy sources.

We need it to make Urea (nitrogen for the plants)