How does our use of fossil fuels affect the amount of CO2 in the atmosphere?

Burning fossil fuels releases carbon dioxide into the atmosphere, contributing to the greenhouse effect and global warming. This increase in CO2 levels is a major factor leading to climate change and associated impacts such as rising sea levels, extreme weather events, and disruptions to ecosystems. Reducing our reliance on fossil fuels and transitioning to cleaner energy sources is crucial to mitigating these effects.