atmospheric CO2 levels

Atmospheric CO2 levels refer to the concentration of carbon dioxide in the Earth's atmosphere, measured in parts per million (ppm). CO2 is a greenhouse gas that contributes to global warming by trapping heat from the sun. Natural processes, like respiration and volcanic eruptions, release CO2, while plants absorb it during photosynthesis. Human activities, particularly the burning of fossil fuels and deforestation, have significantly increased CO2 levels since the Industrial Revolution, leading to climate change. Monitoring these levels helps scientists understand climate dynamics and the potential impact on ecosystems and weather patterns.