The coming New Ice Age, beginning 30 to 50 years from now, presents the severest danger that ever confronted humanity: a potentially rapid transition to the Sun becoming inactive for long periods with 70% less energy being radiated. It will disable large portions of the world's agricultural regions almost overnight, when it begins. While we have the materials, energy, and technology on hand to create a brighter world for us in spite of it, we find it impossible to even acknowledge the challenge, much less find we ourselves committed to mastering it even while our future existence depends on it. In order to overcome the inner barrier, formidable cultural, scientific, and spiritual challenges need to be met. This is especially challenging in today's landscape of our fast collapsing civilization. The required responses are difficult to achieve, even deemed impossible by some, though they promise the greatest new Renaissance of all times.