There are three Greenhouse Gases outside Carbon Dioxide and Methane. They are Water Vapor (H2O), Nitrous Oxide (N2O), and Ozone (O3). These are the very gases responsible for the Earth’s heating and sometimes the lack of them can lead to cooling. It is not just Earth that has greenhouse gases. We’ve also been able to track their roles on both Venus and Mars as well as one of Saturn’s Moons, Titan. You can find CO2 along with Water Vapor in Volcanic gases.
Nitrous Oxide is basically Nitrogen and Oxygen, which then pair up. It will be found in most pressurized metal canisters yet it’s also found on land in bacteria within the soil and in oceans naturally forming. Its main job in the atmosphere is controlling ozone within the stratosphere. Ozone is naturally forming but man uses it in some form in bottled water, air purification, cooling towers, etc. Of course, 90% of it will be in the Stratosphere around 6 to 10 miles above the Earth’s surface. We truly need some proper Ozone levels, as it protects us from violent sun rays.