Yeah, but it's all about the price you get for electricity, throwing air outside is still a fraction of the consumption, 10 cents in Sweden or 5 cents in Arizona and people will choose Arizona, mikeywith is managing to somehow run those damn machines like this
Temperature isn't exactly a huge issue, you need to move enough air fast enough, most mining gears will run just fine at 30c to 40c, it hardly gets above those temps in most places(it does go above 40c sometimes, but doesn't stay that hot for too long), but even then, a bit of underclocking will solve the issue.
The more difficult issue to deal with would be the humidity, mining in a humid place is a lot worse than mining in a hot dry place, which many people seem to overlook, moisture is worse than heat, especially if you live in coastal areas, saltwater will do more damage to your gears than temps, humidity is also a lot harder to manage than heat.
Anyway, the articles mentioned that
KenGen is currently running at a maximum generating capacity of 863 MW after installing another geothermal power plant in April according to Kenyan financial news outlet Capital FM.
of course, we don't know how much they can spare, but just so you know bitcoin's current mining operations need about 15,000 MW, that's 118TWh a year.
Anyway, I think if someone wants to be "more green" would actually utilize something that lowers the carbon footprint, according to the University of Cambridge, the global gas flaring has the potential of generating 688TWh, as it stands, that's 500% more than what bitcoin mining needs, and by utilizing that, not only miners they get dirt cheap power, they will also reduce gas flaring emission that makes up about 6% of the total emission.
Some miners in the U.S have already started utilizing that "otherwise flared/wasted" gas, and I think more miners will be interested in doing something like that as opposed to sending their mining gears to Kenya, after all, "green" energy can't be that cheap.