There are a number of potential synonyms for the word "CCAN", which is an acronym that stands for "climate change action network". Some possible alternatives might include phrases like "climate action group", "green action network", "sustainable advocacy organization", or even just simply "climate advocacy group". Ultimately, the important thing is to capture the idea of a group or organization that is focused on taking concrete, proactive steps to address the urgent and ongoing concerns surrounding climate change. Through advocacy, education, and direct action, CCAN and similar climate organizations can help to raise awareness, mobilize public support, and ultimately work towards a more sustainable and equitable future for all.