The topography of Mars before the tilt can also be used to study the early climate of the planet. (sciencedaily.com)
The height of the tropopause barrier all depends on the background climate of the planet — the cooler the planet, the lower the tropopause. (seas.harvard.edu)
This is a new era — in which humanity has the power to change the entire climate of the planet so that it is more clogged with carbon than at any time since homo sapiens took dominion. (dish.andrewsullivan.com)