Abstract
As human and ecological systems face an existential threat from planetary warming, institutions and collectivities are implementing multiple forms of climate action to address the escalating crisis. Examples of major institutional climate action strategies include climate action planning, nature-based climate solutions, carbon markets and taxes, expansion of green and renewable energy, carbon capture, storage and management technologies, climate public education, litigation and referendums, climate reparations, and a variety of non-institutional mobilizations involving climate protest and anti-extraction actions. Most modes of climate action appear to be driven by various strands of environmental threat—the specter of deteriorating ecological conditions in the face of nonaction. This chapter examines the ways environmental threats motivate multiple types of climate action covered in this Handbook.