How a man-made underground cavern helps low-lying Tokyo escape flood damage
How a man-made underground cavern helps low-lying Tokyo escape flood damage Saitama, Japan — Japan's environmental ministry says temperatures are rising in the country at a faster rate than the global average. That means more rain and more extreme weather events. But in Tokyo, the world's biggest metropolis, they've deployed a unique weapon to provide protection from floodwaters. As CBS News' Lucy Craft reports, Tokyo's over-developed landscape, crisscrossed by scores of rivers, is at high risk for flooding. Computer modelling done for the government shows how prolonged torrential rains co...
Source: cbsnews.com