In what ways does deforestation contribute to the increase in greenhouse gases in the atmosphere?

Global warming is having a significant effect on populations of many plant and animal species.Describe three ways in which this is occurring.

In what ways does deforestation contribute to the increase in greenhouse gases in the atmosphere?

What is responsible for the seasonal changes in CO2 concentrations observed in data from the Mauna Loa Observatory?

The melting of continental glaciers causes sea level to rise, but the melting of Arctic sea ice does not. Why is this so?