Johnathan Williams Posted over 4 years ago Why do so many think that population growth is an important issue for the environment? Don't they know the facts of demographics? No worries mother nature has her own way in keeping human population in control. Haven't she always? Threw the use of sickness, disease, natural disasters on large and small scales, crime, suicide, and war. I wish some of the things like war and suicide don't have to happen but. These things all play a role in calibrating Earths population numerically speaking.