Personal update, aquifers, etc.

I've decided this week to add to the blog but to do by adding a few articles, mostly from the last week, which deal with the depletion of ground water in China. This is a sign of impending serious problems. Although there are ways to replenish ground water artificially, to do so not only requires a source of water but also requires that the water be clean in order to prevent contamination of the aquifer. (There are many sources of this information on the web, including wikipedia. One might search under "water harvesting." One that I found informative was http://www.rainwaterharvesting.org/index.htm .