Soil to FoilAluminum is the most abundant metal in the earth's crust. It is also ubiquitous in the modern world, from aircraft to soda cans. A dizzying number of consumer and industrial products employ aluminum, typically alloyed, because of its availability, versatility, and malleability. Today, how efficiently we use and reuse aluminum is vital to addressing key environmental challenges and understanding humanity's fraught relationship with the earth. Soil to