How 139 countries could be powered by 100 percent wind, water, and solar energy by 2050. The latest roadmap to a 100% renewable energy future is the most specific global vision yet.

See the source article by following the link below:
How 139 countries could be powered by 100 percent wind, water, and solar energy by 2050. The latest roadmap to a 100% renewable energy future is the most specific global vision yet.