This study compares conceptual metaphors in Chinese and American ecological environment news discourses from the ecolinguistic perspective. It examines their underlying ecological orientations and philosophies to advance language ecologization. The findings show that: 1) Conceptual metaphor types in the two corpora display both commonalities and variations; 2) Both corpora feature beneficial and destructive ecological orientations; 3) Chinese and American metaphors respectively, embody the philosophies of “harmonious coexistence between humanity and nature” and “America First”. These differences are shaped by economic and cultural contexts, socio-political factors, and ecological philosophies.