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Basing it off of differences with earth temperatures in the summer than the tropics could have 108-168 Fahrenheit temperatures naturally plant life, climate and albedo would all be effected. However orbit and differences in gases could change the amount of sunlight considerably. It's orbit has to be far enough that the tropics cannot only be inhabited by thermophilic life meaning the orbit is between two points. I so not know whether the high temperatures at the planet's tropics would harm algae there but it still could affect the amount of oxygen and CO2 in the planet's atmosphere.
