Southern Germany Austria Czechoslovakia

Figure 4.7 Decrease in lake pH as inferred from the diatom population structure. The graphs represent changes which have occurred over the period from pre-industrial times until about 1980 to 1985, and indicate the percentage of lakes in each region in which the pH has declined by specific amounts

Source: Form Charles et al. (1990)


///////////// /////////////

Survival Basics

Survival Basics

This is common knowledge that disaster is everywhere. Its in the streets, its inside your campuses, and it can even be found inside your home. The question is not whether we are safe because no one is really THAT secure anymore but whether we can do something to lessen the odds of ever becoming a victim.

Get My Free Ebook

Post a comment