We endure some of the nation’s worst rush hour traffic. Our aging transit system is maddeningly unreliable. It is a crisis — a very slow moving crisis — that puts our region’s economic prosperity at risk. Who is to blame? Can anything be done? The Globe Spotlight Team investigates.

Track the coronavirus pandemic in Massachusetts to its roots and you find a story driven by heroics, ingenuity, error, pain, and a hard question: How could a state famous for health care excellence have suffered such a vast loss of human life?

To the millions of us who visit Cape Cod once or twice a summer, the effects of climate change can seem subtle, if we see them at all: A breach in the dunes. A crack in the pavement. But once you know how to see what is shifting, changing and washing away, it is impossible to ignore. Come with us as we explore the Cape to better understand what climate change is doing here, what it means for the future of this beloved place, and what the cost of inaction might be.