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.
At 0.5m height, the averaged level of CO2
over the JW pavement is about 84% lower than
that over the non-JW pavement.
- Red balls: completely hollow balls for increased water storage.
- Green balls: filled with absorptive carbon — ashed rice hulls — to provide nutrients and a suitable environment for microorganisms.
- Blue balls: filled with sponges to retain water for long dry periods.
- Black balls: filled with biochar to detoxify water and air from heavy metals and other pollutants, and to encourage microbial diversity.
- White balls: filled with the topsoil taken up from that pavement site, to return the ecosystem and microbial life to its original health.