Many sizes from our environment can be electronically fairs. It can be formed as weather forecasts or analysis of pollutants are carried out. Here is a selection of interesting links

Here you will find Schematic Circuit Diagram for DIY and further information on Weather and Environment
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Temperature compensated pH meter	www.cyberreefguru.com/electronics/phmeter2.gif
Super accurately described the project of a weather station with all the trimmings 5 stars!	www.umnicom.de/Elektronik/Projekte/Wetterstation/Wudu2.htm