Date: 2005 August 14 15:15
Posted by Joe
A campaign to drench water on concrete in urban areas has started across Japan to help cool down big areas and prevent global warming. Scattering water on streets and gardens is a traditional Japanese way of cooling down in summer and according to the Mainichi Daily News was started in the Edo Period. Apparently when the scattered water evaporates it reduces the temperature.
Source: Mainichi Daily News