First, here is an excellent article by Bill McKibben on our current response to Climate Castastrophe:
The net of it is this: it is time for a world-wide large scale mobilization for a "war" we are currently losing. We can turn it around if we put the same level of intensity and energy into fighting it as we did WW2.
Second: Here are the top 100 solutions courtesy of Paul Hawken and his research team. "Drawdown" covers proven solutions that ALL need to be implemented in order to reverse Climate Change: