Environmental problems in the use of fossil fuels and how to develop new energy sources to replace them in the future.

Fossil fuels are usually non-renewable, so they are facing the problem of exhaustion.

Fossil fuels usually contain element C, which will release a lot of greenhouse gas carbon dioxide when burned.

It often contains elements such as s and n. SOx and nitrogen oxides are released during combustion, which is easy to form acid rain.

New energy sources include wind energy, hydro energy, nuclear energy, biomass energy and other forms. As long as it can replace fossil fuels and reduce the use of fossil fuels, it can be considered as a substitute for new energy.