In the cloud forest I looked at droplets moving from the gaseous phase of their life back to a watery one. These days I'm working on where these droplets go for the next stage of the water cycle and what happens to them there. The River Kennet, which is one of the rivers I work on, is a
chalk stream which would under non-polluted conditions be totally clear. The stretch on which the photo is taken, however, isn't - and nobody quite knows why (that's why it is being researched). Still, there are some plants growing and the water is clear enough to be able to see the bottom:
Matters could be far worse, as for example in the
Riachuelo, a tributary of the River Plate. Apparently it is the third most polluted river in the world - but it doesn't really need any official credentials. One can smell it from some 300m away and it looks pretty toxic - it must be a hotbed of fantastically interesting microbes:
For more water photos visit
Watery Wednesdays.