This chapter aims to review the contemporary theorizations that surround nostalgia and the current Anthropocene conditions. Nostalgia is primarily conceptualized as a critical tool that not only allows a deeper understanding of the resistance to acknowledge the dangers of the climate crisis but also presents ways to counteract it. The first section of this chapter discusses the relation of nostalgia to the “pastoral” mode of environmental representation and the general capacity of nostalgia to facilitate ecological agency. The second section of this chapter is dedicated to the discussion of “petro-nostalgia”. Through the reference to different works of art, the section sets out to examine various mediations of nostalgia for preceding auto cultures, nature lost to oil dependence, and pre-capitalist times of “innocence”. In the third section, other nostalgia-related emotional registers concerned with environmental loss are addressed. In particular, “green trauma”, “solastalgia”, “eco-nostalgia”, “geotrauma”, “planetary melancholy”, and “socioecological melancholy” help to capture the intricate emotional attachments that one might have to the landscapes disappearing due to climate change and extinction of species. The fourth section briefly touches upon the role of the aesthetics of nostalgia in mediating the experience of living in the age of the Anthropocene. At last, the final section introduces the definition of Anthropocene nostalgia, bringing to the fore its political potential to affect the status quo.