Great Escape

Your Climate Change Survival Plan

Unless you’ve booked passage to Mars, it’s time to consider the unimaginable

Jeanne Tripplehorn and Kevin Costner In ‘Waterworld’. Photo: Archive Photos/Stringer/Getty Images

Three-quarters of the world’s megacities sprawl seaside. More than 40 percent of Americans live in oceanside counties. The National Oceanic and Atmospheric Administration projects that number will increase, even while the seas rise an…