Government investment is essentially a form of planned economy. There's lots of examples of that not working so well. I'd argue that the most effective solutio

Government investment is essentially a form of planned economy. There's lots of examples of that not working so well. I'd argue that the most effective solution is a carbon tax, applied on any carbon which leaves the ground. That would create incredibly strong market conditions for energy saving technologies, and provide a big cost advantage to renewable energy. We know that pricing effects consumer behaviour. The oil price increases of the 70s and late 2000s reduced miles driven and changed car buying behaviour. https://www.nytimes.com/2008/06/19/business/19gas.html?ref=business https://www.nytimes.com/2008/06/19/business/19gas.html?ref=b... When the right conditions in the market exist, the rate of development will be so much faster than any inefficient direct investment program every will. https://concretecuts.xyz/articles/green-tech-market/ https://concretecuts.xyz/articles/green-tech-market/