In this Introduction, we set the Special Issue on 'Tropical Imaginaries and Climate Crisis' within the context of a call for relational climate discourses as they arise from particular locations in the tropics. Although climate change is global, it is not experienced everywhere the same and has pronounced effects in the tropics. This is also the region that experienced the ravages – to humans and environments – of colonialism. It is the region of the planet’s greatest biodiversity; and will experience the largest extinction losses. We advocate that climate science requires climate imagination – and specifically a tropical imagination – to bring science systems into relation with the human, cultural, social and natural. In short, this Specia...