Paul Jenkins' "Earth Day" lithograph exemplifies the artist's characteristic abstract expressionist style, employing fluid washes of color and gestural mark making to create a dynamic composition. Jenkins was renowned for his atmospheric approach to abstraction, often allowing pigment to flow and interact organically on the paper surface, a technique evident in this work. The lithograph reflects the environmental consciousness of its era while maintaining the artist's focus on the expressive potential of color and form rather than literal representation.