Christian Science Monitor: Writing about global warming has changed a lot in the past few years. This is not because the science itself has changed – but because political reaction to it has. It seems that we have, at long last, moved beyond denial and inertia. The time for books that explain what global warming is and why it matters has come and gone. The need now is for answers to the one question that really mattered all along: What do we do about it? Two current books examine the evidence and come …