Portuguese street artist Bordalo II (real name: Artur Bordalo) is highlighting the world’s growing garbage problem—and the environmental plight it causes—by creating giant 3D animal sculptures from scavenged scrap materials and trash, Colossal reports.

“With the production of things at its highest, the production of ‘waste’ and unused objects is also at its highest," the artist writes on his website. “‘Waste’ is quoted because of its abstract definition: ‘One man's trash is another man's treasure.’ I create, recreate, assemble, and develop ideas with end-of-life material and try to relate it to sustainability, ecological, and social awareness."

Bordalo II's spray-painted installations have popped up across the globe, in locations including Lisbon, PortugalHamburg, Germany; Tallinn, Estonia; and Fort Smith, Arkansas. View a few of the artist's creations below, or visit his website or Instagram for more works.

[h/t This Is Colossal]

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