(B)energy at TEDx ADDIS: biogas backpack – tagged aid-free!
Nov21,2015
benrg260
The idea behind the biogas backpack! The difference between rich and poor is not money – find out what it really is and what the business with biogas has to do with this in Katrin’s TED talk.
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(B)energy at TEDx ADDIS: biogas backpack – tagged aid-free!
The idea behind the biogas backpack! The difference between rich and poor is not money – find out what it really is and what the business with biogas has to do with this in Katrin’s TED talk.
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