On Craftworld Ecoleg-Yfory, Earth Day is a nationalist military holiday that signals the beginning of the War Season with a day-long ceremony where every warrior of each warhost plants a tree in the massive Field of Khaine, one for each season they've gone to war. On death, each tree is uprooted, and re-planted on any of the craftworld's conquered and re-natured forest-planets, as designated in that Asuryani's will
POV you just threw your empty can in the trash instead of the clearly marked aluminum recycling bin
I think for the next kill team narrative campaign season I'll be blades of Khaine as some Craftworld Ecoleg aspect warriors whose job is straight up just going to imperial worlds in small strike squads and doing ecoterrorism and industrial sabotage and I'll call them the Eco Warriors