Guardian - 1 minute videos

[Ted]

A series of 1 minute videos on renewables and climate change topics.

http://www.guardian.co.uk/environment/video/2009/jul/09/manchester-report-jeremy-leggett-solar  - and see the others linked on the right hand side.

[SteveH]

 Good find Ted,

 Good, quick & concise primers...

 Very interested in the "BioChar" concept.


 I believe there has been some research into the pre-Conquistadore cultures of Brazil. This shows they used a similar method to improve soil fertility over large areas of the southern Amazon basin.

 I'm going to experiment by burning some of the olive wood thinnings in an old oil barrel. At the moment Cretans just burn them in the olive groves & although the ash is of some use I believe BioChar could be of more use in enhancing the soil....

[dhaslam]

Part of the benefit seems to be in trapping the  gases as well and the benefit to the soil depends on soil type.    It could be of relevance in areas where straw is normally burned  in fields after harvesting.   

The one I found most interesting so far was
http://www.guardian.co.uk/science/video/2009/apr/22/james-lovelock-gaia-space-biochar