What are positive and negative effects we have on our atmosphere?

A major positive is that a life on earth could not exist without the greenhouse effect. If the atmosphere did not retain heat, our planet would be in habitable to plants and animals. Carbon dioxide is a greenhouse gas, but it is. Pretty much the weakest one of their is. All other greenhouse gases are turned in how many times more effective the gas is then carbon dioxide. Water vapor and sulfur oxides are some examples of more potent greenhouse gases.