Top Story apps.npr.org After the water: Flash floods pose existential threat to towns across US When a flash flood ripped through Old Ellicott City in Maryland, residents thought it was a freak occurrence. Then, less than two years later, it happened again.
Newsletter grist.org A 1,000-year flood in Maryland shows the big problem with so much asphalt When hard, impermeable concrete replaces absorbent green spaces, it’s much easier for floodwaters to overwhelm stormwater drainage.
