Ethiopian artist Elias Sime wants to remind us that when we upgrade to the newest model of iPhone, computer, or other electronic gadget, the old ones don’t just disappear. They often end up on enormous waste heaps somewhere in Africa where the fastest and cheapest way of insulating copper from insulated wires is to burn it. The smoke from these fires contain dangerous levels of dioxin, heavy metals and other pollutants that pose extreme dangers to human health. Every day, armies of young men, women, and children, deprived of any other job alternative, work in these toxic environments. Some of these small electronic parts have now found a new home. As part of his ongoing series, “Tightrope”, Sime painstakingly assembles thousands of small electronic components on rectangular panels to arrive at his large, beautifully lyrical abstract compositions. Vibrant colors morph into harmonious collages that remind of water, nocturnal cityscapes, or in a particularly fetching piece, the modernist landscape architecture of the Brazilian artist Roberto Burle Marx. Sime’s work is not only a reminder of our wasteful habits and callous disregard for the environment but also proves that beauty and refinement can be coaxed out of almost anything. At James Cohan through June 17.