The Great Change: Breathing Highways and Sponge Cities
During the 20th Century, the rate of global warming was twice as fast in Taiwan (1.7°C) as for the world as a whole (0.74°C). Partly as a result, the number of days with rainfall decreased dramatically and typhoons gained strength. In 2009, Typhoon Morakot dropped over 1,000 mm (39.4 inches) in a single day and caused the loss of 699 lives. A massive mudslide wiped out Xiaolin Village and 474 people were buried alive. In 2015, Typhoon Soudelor left similar damage. It took months to repair the roads.
Then Taiwan and East China were struck by Dujuan, known in the Philippines as Typhoon Jenny, a killer storm and the thirteenth typhoon of the 2015 Pacific typhoon season. Eight months later, Nepartak became the third most intense tropical cyclone on record with 114 deaths and more than $1.5 billion damage in Taiwan and East China. September brought Meranti, a super typhoon and the strongest ever to make landfall in China in more than 1000 years of records. Meranti’s peak sustained winds tied the record set by Haiyan in 2013, 195 mph (315 km/h), comparable to a tornado, or a Category 5 hurricane on the Saffir-Simpson scale. In Taiwan, nearly 1 million households lost power and 720,000 lost water supplies. Flooding in Zhejiang took 902 homes and affected 1.5 million people.
Between those punctuations, the erratic weather brought long droughts. New Taipei City had to enforce water restrictions when the Shihmen reservoir went dry in April. All cities along coasts or rivers have engineered means to remove excess water and to prevent flooding. Few have the means to sustain themselves in severe droughts. Read More