What percentage of the carbon dioxide in the atmosphere has been produced by human activities?
The answer to that question is complicated by the fact that human activity is not the only factor affecting the amount of carbon dioxide in the atmosphere. Plants, both on land and in the oceans, continually absorb and release large amounts of carbon dioxide. Plants absorb carbon dioxide when they grow and release carbon dioxide as they decay. Forest fires, volcanoes, droughts and other natural phenomena can affect the natural rate of carbon dioxide uptake and release. Separating out the impact of human activity from all the other factors is difficult.
Related Questions
- What percentage of the CO2 in the atmosphere has been produced by human beings through the burning of fossil fuels?
- What percentage of the carbon dioxide in the atmosphere has been produced by human activities?
- How do we know the increase in carbon dioxide concentrations is caused by human activities?
