Beer and crisps used to cut carbon emissions

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Here’s a story we missed at the end of last year:

Walkers Crisps have unveiled technology that could reduce their CO2 emissions by 70%. The technology mixes CO2 captured from a brewery’s beer fermentation process with potato waste and turns it into fertiliser.

Manufacturing fertiliser usually creates a lot of CO2 emissions, but Walkers’ new technology does not generate any CO2 at all. In fact, it does the opposite: harnessing the CO2 waste from the brewery which would normally escape into the atmosphere.

Walkers will spread that mixture on its fields to feed the following year’s potato crop. This ingenious emissions-cutting process was developed with a grant from the UK government by a start-up called CCm.


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