Portside

Can disruptive social movements change the world or are we better served by take-it-slow, wait-a-year-or-more-to-speak-up, incremental change? Mark and Paul Engler make a case for the former, arguing in their new book, This Is an Uprising: How Nonviolent Revolt Is Shaping the Twenty-First Century, that supposed pragmatism often stands in the way of genuine progress. The grand slogan of Paris, 1968 -- "Be realistic, demand the impossible" -- is sage and sober advice.

Whereas, most U.S. science teachers include climate science in their courses, their insufficient grasp of the science may hinder effective teaching. Mirroring some actors in the societal debate over climate change, many teachers repeat scientifically unsupported claims in class.

Last year was the second-warmest on record in the continental United States. December was a U.S. record-breaker for heat and also precipitation. 2015 will prove to be the hottest year on record globally. Give Earth a few million years and it'll do fine. If climate change does its worst, life, in some fashion, will undoubtedly survive and someday once again flourish, but the environment will cease to exist in any time span that is meaningful to us.

Candidates can get easy applause by lambasting journalists. Nevertheless, as a scholar concerned with the critical functions journalism fulfills in a democracy, the author argues that the highest imperative for journalists is to serve the needs of audiences and the democratic process for critical information. Journalists moderating presidential debates must function as journalists.

“What is most unfortunate is that polarization around climate change ... was manufactured by those whose financial and political interests were most threatened.” Even today, that polarization has crippled any hopes for bipartisan policy solutions.

There’s no getting around the fact that climate change is a bummer. The planet is warming, ice is melting, oceans are acidifying and, well, you get the point. While the bad news is important — it lets us know what we’re getting into with this whole climate change thing — it’s also worth remembering there’s reason for hope.

2015 can be viewed as the year in which the epochal transition from one set of fuels to another took off, with renewables making such significant strides that, for the first time in centuries, the beginning of the end of the Fossil Fuel Era has come into sight. This shift will take place no matter how well or poorly the deal just achieved at the U.N. climate summit in Paris is carried out.

Everybody Hates Ted Cruz. Movie: Concussion. Climate: States at Risk. Movie: Spotlight. Einstein 100 - Theory of General Relativity.