By Meredith Somers

From alternative fuels and next-gen batteries to compact fusion and carbon capture, here is a sampling of clean tech companies with ties to MIT.

As the latest report from the International Panel on Climate Change makes urgently clear, reversing the climate’s downward trajectory requires action from all stakeholders in science, academia, government, and notably, industry.

“Investment in social and technological innovation could generate the knowledge and entrepreneurship needed to catalyze system transitions, and their transfer,” the report states.

One silver lining: That investment in entrepreneurship is already underway.