Further from that Eric Metaxas:
“If the earth were slightly larger, it of course would have slightly larger gravity, which has interesting implications. It’s not just that a person who weighs 150 pounds would weigh more. It’s that if the earth had slightly more gravity than it now has, methane and ammonia gas, which have molecular weights of sixteen and seventeen, respectfully, would remain close to our surface. Since we cannot breathe methane and ammonia, which are toxic, we would die. More to the point, we would have never come into existence in the first place.
On the other hand, if earth were just a tiny bit smaller and had a bit less gravity, water vapor, which has a molecular weight of 18, would not stay down here close to the planet’s surface but would instead dissipate into the planets atmosphere. Obviously, without water we could not exist.” – Eric Metaxas – Miracles – pages 38-39
Again, hat tip: Philip Cunningham