Mars atmosphere composition . According to ESA, Mars' atmosphere is composed of 95.32% carbon dioxide, 2.7% nitrogen, 1.6% argon and 0.13% oxygen.The atmospheric pressure at the surface is 6.35 ...

The amount of carbon dioxide and two other greenhouse gases in Earth's atmosphere hit record highs last year, the World Meteorological Organization said in a report published Wednesday.

Atmospheric composition Venus' atmosphere is made up of 96% carbon dioxide, 3% nitrogen and 1% other gases. These other gases are mainly sulfur dioxide, carbon monoxide, water vapor, helium, argon ...

Gas giants, by contrast, are hydrogen-rich, which should make for a reducing atmosphere. We should see water, methane, and hydrogen sulfide, not carbon dioxide and sulfur dioxide. Planet-scale ...