> True geothermal energy is truly green
Reminder: few energy sources do not add heating to the atmosphere during the whole energy lifecycle!
It's the ones that *subtract* energy from the environment in the first place: solar, wind, dams, tidal energy.
Other sources (including geothermal, nuclear, oil ...), even if we could produce a 100% efficient power plant, are still extracting energy that would otherwise stayed "locked-in" somewhere.
Keep in mind that virtually all electrical energy produced turns into heat released in the atmosphere.