We know what to do about Global Warming, but we do not all know that we know what to do, much less that we are doing it. Nobody in the media, Right or Left or neutral, reports on what is really going on. Mostly we hear about the politics, and only occasionally get fragmentary reports about technology and installations. Right Wing media denies everything, including itself: Global Warming is a hoax; There is no problem; Global Warming, excuse me, Climate Change is good for you!; We can't afford to solve the problem; Switching to renewables will crash the economy; Impeach Obama!
But we can do it, and we are doing it.
Let us look at where the remaining problems lie, what we do about each, and something about the economics, technologies, and possible time scale. The most important fact about the time scale is called exponential growth, most easily understood in terms of the doubling time for any development. By definition, in sustained exponential growth, half of the required advances occur in the very last doubling period, no matter how slow the process was in the beginning.
The other big problem is how to get the word out. We can do something about that right here, and inspire more.