In 2007, artist-activist Eve Mosher spent six months walking the streets of Manhattan and Brooklyn drawing chalk lines on the ground to raise awareness of global warming. The lines, made with a rolling cart that leaves behind a streak of chalk dust, demarcated areas that climate scientists predict may be flooded more frequently in years to come. Specifically, the “HighWaterLine,” as she called the chalk stripe (and her project), represented the line 10 feet above sea level on a topographical map. “This will be under water; that will be dry,” Mosher told people she met on the street, referring to either side of the mark she was making. Mosher, along with three other artists, presented her work Sunday at the NYC Leonardo Art Science Evening Rendezvous (LASER).

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