Stephan:   More bad news about climate change. Notice these authors no longer say it can be stopped only that they think it is still possible to prevent the worst outcome. The continued opposition to making major changes, to transition from old energy to new non-carbon based energy in my view constitutes a crime against humanity. Not that I think anyone will ever be held accountable. The one hope I see is that LENR and major breakthroughs in other alternatives will be taken up by localities and regions. I don't expect anything to happen at the Federal level that really addresses the crisis. Decentralization, I think, is the only way forward. Christopher R. Schwalm is a research assistant professor of earth sciences at Northern Arizona University. Christopher A. Williams is an assistant professor of geography at Clark University. Kevin Schaefer is a research scientist at the National Snow and Ice Data Center.