(MSNBC) Scientists are using the pine-forested slopes of a Mexican volcano as a test bed to see if trees could grow on a heated-up Mars, part of a vision of making the chilly and barren red planet habitable for humans one day.
Planetary scientists at NASA and Mexican universities believe if they can warm Mars using heat-trapping gases, raise the air pressure and start photosynthesis, they could create an atmosphere that would support oxygen-breathing life forms.
Scientists are currently looking at trees living upon Pico de Orizaba, Mexico's tallest mountain (and notably an extinct volcano). These trees seem to display a unique ability to survive in the thinner air, which make make them preferable to algae and moss in the long run.
Note: Scientists still have not determined whether or not Martian soil is fertile, although humans may have to "create their own" fertilizer in order to make this dream a reality (at least in biospheres).
Update: Corrected title link.
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