Climate change is not our first existential threat and adaptation to climate change is by no means a new endeavor. Throughout history people have been responding to large scale economic, social, and political changes. However, the organizations and paradigms that caused the climate crisis are deeply embedded in its solutions. The prevailing response to climate change, namely adaptation, is focused on international development and reproduces known inequalities created by global hegemonic power. And yet, the everyday tasks of life altered by climate change is a tremendous amount of work. My analysis of adaptation labor draws on 22 months of ethnographic fieldwork from the Sundarban Region of India and Bangladesh, one of the places most vulnerable to climate change where residents are actively battling against increased salinity intrusion, coastal erosion, and extreme weather on their lands. This dissertation illuminates how people are attending to their losses (of seasons, peace, food systems, fresh water, etc) and life changes (relationship to nature, communities, land, built environment, etc) by adapting on the ground. Losing the Seasons traces the six seasons of the year to portray the intimate ways Sundarban residents are adapting their lives and livelihoods to climate change and how these changes aggregate to reshape social life. In the first three empirical chapters, I demonstrate that climate change is breaking down socially constructed boundaries by exposing their artificiality and highlighting our interconnectedness. We must recognize that climate impacts transcend national borders and societal divisions and think outside of and beyond these boundaries to adapt. The second three empirical chapters focus on the ways in which people in the Sundarbans labor against climate change and how decision making patterns shape how local people imagine the past, present, and future. These chapters also demonstrate clearly the ways that development thinking fails us. In tandem, these two parts beg a redefinition of adaptation that has tremendous implications: how we might move towards decolonizing adaptation; rethinking our toolkit for dealing with climate change adaptation in ways that center local knowledge, practices, and visions for the future.