In today's world, energy matters are related to the rise and fall of countries and people's livelihood. Among them, fossil fuels have always been energy users, but there are different opinions on their relationship to carbon sources.

Fossil fuels belong to coal, oil and natural gas. They are accumulated in the ground and have been deposited and combined over a long time. In the past, science and technology were not developed, and they were rarely used. In the modern era, industry flourished, machinery ran, and cars and ships ran, all relying on fossil fuels as the source of power. Its usage is increasing day by day, so it is the pillar of energy in the world.

However, whether fossil fuels are carbon sources must be investigated in detail. Looking at its burning state, when coal is burned, fireworks are in the air, and thick smoke covers the sun, which contains many carbonaceous particles, which are scattered in the atmosphere; petroleum refining, fuel-driven, and carbon dioxide and other carbon-containing gases escape in large quantities; although natural gas is cleaner, it also produces carbon oxides when burned. This all shows that when fossil fuels are burned, carbon elements change from solid and liquid states to gaseous states and enter the atmosphere, which is undoubtedly a carbon source.

And from an environmental perspective, due to the large-scale use of fossil fuels, carbon emissions have surged, causing global climate change. Glacier melting, sea level rise, frequent climate extremes, droughts and floods are all closely related to the increase in carbon sources. This is not only related to natural ecology, but also endangers human survival and development.

To sum up, fossil fuels are also carbon sources. We should think about changes and seek innovation, and develop clean energy, such as wind energy, solar energy, and water energy, in order to reduce dependence on fossil fuels, reduce carbon emissions, and make the sky clear and the earth peaceful, and all things coexist in harmony.