Clouds are not the disaster that you might think them to be. Yes, they have a fantastically effective greenhouse effect, but they are also very good at reflecti

Clouds are not the disaster that you might think them to be. Yes, they have a fantastically effective greenhouse effect, but they are also very good at reflecting sunlight. I'm not sure about the net result of both phenomena, but that should be kept in mind. Renewables being tested at scale isn't really a concern. There are now multiple cases of islands being 100% renewable, with energy storage in the form of pumped hydro, or as is becoming increasingly common, lithium-ion battery storage. I live on a college campus that's in the middle of a massive wind-farm, and is almost entirely renewable most days. And this isn't some small wind-farm; it has a peak output of over a GW. Scale, isn't the problem with renewables - it's storage. However, with the current cost reductions that we're seeing with batteries, I think it'll be a solved conundrum within the decade. It won't be too long before solar with batteries is cost-competitive, as both technologies are getting cheaper exponentially.