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Photo of Ken Calvert

Ken Calvert

Ken Calvert is a retired waste treatments chemist/engineer and has spent most of his working life in the third world, Vanuatu, Papua New Guinea, Vietnam, and mainly with coffee processing. For every tonne of Coffee beans exported there is 4 tonnes of dirty water and three tonnes of rotten fruit pulp to be disposed of. His website is

Carbon dioxide, lifeblood of our planet
Environment - 22/11/2021 - 23 comments
Mountains of glass and pools of plastic?
Environment - 8/11/2021 - 10 comments
Plastic is fantastic!
Environment - 11/10/2021 - 16 comments
The political house of cards
Environment - 19/08/2019 - 12 comments
Plastic is fantastic!
Environment - 6/06/2019 - 15 comments
Plastic is for burning!
Environment - 5/02/2019 - 23 comments

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