Why Mars is cold despite an atmosphere of mostly carbon dioxide | Eurasia Diary - ednews.net

13 December, Friday


Why Mars is cold despite an atmosphere of mostly carbon dioxide

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The recipe for the temperature of a planet's surface has four major ingredients: atmospheric composition, atmospheric density, water content (from oceans, rivers and air humidity) and distance from the Sun. There are other ingredients, including seasonal effects or the presence of a magnetosphere, but these work more like adding flavour to a cake.
 
When we look at Earth, the balance of these ingredients makes our planet habitable. Changes in this balance can result in effects that can be felt on a planetary scale. This is exactly what is happening with the increase of greenhouse gases in the atmosphere of our planet.
 
Increased concentrations of carbon dioxide, methane, sulphur hexafluoride and other gases in the atmosphere have been raising the temperature of our planet's surface gradually and will continue to do so for many years to come.
 
As a consequence, places covered in ice start melting and extreme weather events become more frequent. This poses a growing challenge for us to adapt to this new reality.

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