This is a game where my post will always have the Earth in the way you created it. You can add only one thing and you cannot have back to back posts. Sometimes, natural disasters will occur and you will add things to stop them. Here's an example.
Person 1: I add water, so there is life on Earth.
Person 2: I add land, would be good.
Person 3: I add some buildings to make population.
ME: *draws the Earth you created with Water, Land and Buildings as how the three people above me said.
Everything was used to stop the Apocalypse, but that wasn't just enough because someone used a technology to multiply the Asteroids (I don't remember who). The ozone stopped few but failed to catch the other ones. The people were granted military knowledge but it was just too late. The Earth is destroyed, ashes are tearing around it. And the first Apocalypse started...and ended in seconds. This is the Earth today.
Well, nitrogen and oxygen generators to create an atmosphere similar to the old one. And start to restore the ozone. Later and a little CO2 (just a little bit to warm it up) ant then add water.