Atmospheric pressure
Atmospheric pressure is the force per unit area exerted on a surface by the weight of air above that surface in the atmosphere of Earth (or that of another planet). In most circumstances atmospheric p...
Atmospheric pressure - Wikipedia
Variations In Atmospheric Oxygen Levels Shaped Earth’s Climate Through The Ages
Variations in the amount of oxygen in Earth's atmosphere significantly altered global climate throughout the planet's history. Efforts to reconstruct past climates must include this previously overloo...