Human Induced Global Warming Drying Up Arctic Ponds
...usand years-until the 1800s; but that new kinds of diatoms and mosses had taken over the ponds in recent years, the first signs of global warming. During their study, the duo searched sediments in the ponds and dug out the shells of diatoms-microbes that grow protective mineral sheaths around themselves. ......ment of Health has confirmed coliform bacteria and diatoms in some samples of bottled water produced by North... of other potential contamination. The presence of diatoms is an indication that untreated or partially treated surface water is contaminating the source water...