What is "critical" about critical theory? I claim that, to be "critical enough", critical theory's future depends on being able to handle today's planetary climate crisis, which presupposes a philosophy of nature. Here, I argue that Axel Honneth's vision of critical theory represents a nature denial and is thus unable to criticize humans' instrumentalization as well as capitalism's exploitation of nature. However, I recover what I take to be a missed opportunity of what I term as the early Honneth's original ecological insight, which I reconstruct precisely as a philosophy of nature. Consequently, I identify what I describe as an ecological sensibility in Honneth. This refers to a bodily capability through which humans sensuously can resonate, communicate, and interactand through that morally engagewith nature in its entire complexity. Furthermore, by virtue of this ecological sensibility, humans can recognize nature's inherent moral value as a sensuously affected party. Then, the early Honneth's original insight is recovered as a critical political ecology, which is needed facing today's climate crisis.