In South Korea 🇰🇷, the solar panels in the middle of the highway have a bicycle path underneath - cyclists are protected from the sun, isolated from traffic, and the country can produce clean energy.

@hankg Is it? Clean? AFAIK, solar panels production consumes lots of rare-earth elements and aren't recyclable? 🤔

@AugierLe42e they have made a lot of progress on solar panel recycling. Let's also not do the perfect is the enemy of the good. That just leads to stagnation of the status quo.

@hankg Oh it's not rhetoric. It really was a question. That is a subject I master, far from it. Of course, it all depends on the purpose. If it's about replacing coil plants by solar panels, I suppose it's a good thing. But if these solar panel are here to produce more energy, then, it's probably not beneficial 🤔

@AugierLe42e It's actually more about multipurpose structures that foster generation of renewable energy and less reliance on fossil fuels. It's the same as putting solar panels on parking lots/structures. The "but rare earth metals" conversation reminds me of "but the birds" around windmills. No one cares about heavy metal pollution from nuclear, tar sands, burning/processing of the fossil fuels, etc. when discussing their use in solar or wind. No one cares about the reprocessing or storage of nuclear fuel when discussing the ecological affects of rare earth metal extraction. No one talks about how we are using them in essentially all of our modern electronics products. It becomes FUD for not doing renewable energy in our energy solutions. I am all for making sure we are not ignoring ecological problems of any energy production process but we need to look at it holistically.

@hankg That's all true. This is definitely a complex issue.

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