Rya Jetha, a student at Pomona College in the U.S., describes the importance of “sponge cities” as a climate resilience solution for Asia’s megacities. Asia is home to a disproportionate number of megacities, which are uniquely exposed to the effects of climate change. Sponge cities, which incorporate “blue” or “green” infrastructure like vegetative parks, permeable pavements, and urban forests, can capture and reuse water, averting flooding disasters and water shortages. Investing in cities should be a top priority for Asian policymakers, and a region-wide Blue and Green Cities initiative aimed at building sponge cities across Asia would promote climate resilience and make megacities more livable.