The Cummins campus in Guarulhos, Brazil, is near several major highways and São Paulo’s international airport. Traffic in the area is frequently bumper-to-bumper. Green space is limited. But over the past three years, nearly 800 Cummins employees have planted some 5,000 trees in the area. Not only has their work helped beautify the city, the air is cleaner, dust has been reduced and temperatures are down in some areas.