Explain why atmospheric concentrations of carbon dioxide are expected to increase in the future.

Answer:

Atmospheric carbon dioxide concentrations are expected to increase, because practices that are responsible for carbon emissions are expected to increase. With an increased demand for energy caused by an increasing population, fossil fuel burning is expected to increase. When fossil fuels burn, carbon dioxide is released into the atmosphere. Additionally, the clearing of forests for agriculture and living space that occurs in response to increasing populations causes a release of carbon dioxide into the atmosphere.