Great thread truthseeker
I especially like the solar cup engine.
Actually the problem is where the investment dollar is put. It's so simple to invest in mining. I've been involved in my families investments and though I have no money of my own, my actions are yet to follow my ethics, though I don't advise anyone to invest in uranium mining or exploration.
However it always worries me that mines destroy both underground acquifer's, requiring huge volumes of pumping, up to 11million litres per day over the life of one particular ordinary underground mine. I also worry that the resources are not really going to needs, but rather to wants.
While mining copper may support electricity and water supply infrastructure, it doesn't help those hundreds of millions who have no access to clean drinking water. Rather we have mining executives in Australia warning the government to tone down it's rhetoric about Chinese military expansionism. (Not that we have any rhetoric about US and Australian military expansionism).
Funnily enough I suggested an innovative solar company to some of my family members but they thought it was too risky. The stocks have traded between 500% and 1500% above their listing price after first floating on the Australian stock exchange in May. If anyone wants the name of the company just ask and I'll post it. But I won't name it here because I'm not advertising a company, rather an idea.
Solar energy companies have been some of the best performers too on the German stock exchange.