The US Department of Homeland Security (DHS) has developed a ten-by-five-metre inflatable structure that could be quickly deployed to isolate sections of transit or rail tunnels in the event of ...

As climate change escalates, cities around the world become increasingly at risk for flooding. By 2100, sea levels are expected to rise three to four feet — and are now rising faster than they have in ...

After Hurricane Sandy decimated the subway system last year, officials pledged to install new devices to help halt the rising tides—including flood gates and, more ...