Leaders from 147 countries have assembled in Paris for COP 21, the most important climate summit since the 2009 Copenhagen meeting. But climate justice activists worry the result will be the same: platitudes and handwringing, with no firm commitment from Global North countries to drastically curb carbon emissions.

What, then, would a just solution look like?

David Schwartzman, a biogeochemist and professor emeritus at Howard University, has been thinking and writing about climate and energy issues for many years. He recently spoke with Jacobin about the state of the climate crisis, the connection between global warming and the military-industrial complex, and why “the communist horizon in the twenty-first century, if there is to be one, will be solar communist.”