Does lower the level of greenhouse gases, the more heat is retained and returned to earth, causing an increase in global temperatures?

The statement that lower the level of greenhouse gases, the more heat is retained and returned to Earth, causing an increase in global temperatures is false. 
The term greenhouse effect is caused by greenhouse gases in our atmosphere . These greenhouse gasses trap and redirect the heat back to Earth, which results in increased temperatures and contributes to global warming. So, in contrast the that lower the level of greenhouse gases, the less heat is retained and returned to Earth, causing an decrease in global temperatures.