GC: n  CT: Over the past century, the total material wealth of humanity has been enhanced. However, in the twenty-first century, we face scarcity in critical resources, the degradation of ecosystem services, and the erosion of the planet’s capability to absorb our wastes. Equity issues remain stubbornly difficult to solve. This

GC: n CT: For less than two dollars, you can purchase a 10-pack of the bestselling pen in the world. Since being introduced in the 1950s, almost 150 billion Bic Cristals have been made. The pen is an exceedingly ordinary item found in most schools and workplaces across the globe. But it harbors a tiny secret. Inside the tip sits a one-millimeter-diameter perfect sphere