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Tuesday, November 30, 2021

Australia. Climate change. They feed the algae with fermented hops to fight climate change

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Brewers from New South Wales, Australia, feed fermented hops to algae to reduce the effects of climate change. What is this innovative method about? Algae retain the carbon dioxide produced during the fermentation of hops and convert it into oxygen.

Australian brewery Young Henrys has started working with scientists to create two 400-liter “bioreactors” filled with trillions of microorganisms. According to the co-founder of the brewery, Oscar McMahon, each of the large tanks produces as much oxygen as two hectares of bush. “We could raze the entire brewery to the ground and plant trees there, and it would still take years to achieve the results we have with these bioreactors,” said McMahon. “This is absolutely amazing technology,” he added.

Australia. Fight against climate change

Researchers from the University of Technology in Sydney (UTS) and Meat & Livestock Australia teamed up to investigate whether similar algae could be used to offset methane emissions from cattle farming.

Currently, Young Henrys Brewery sends leftover grain to farmers as cattle feed. Earlier research shows promising results that adding microalgae to the mix could reduce the methane emissions produced by the cows by up to 20 percent.

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‘Algae in this way would play a significant role in the future in a sustainable circular economy where carbon is reused and waste from one industry becomes an important product in another, explained Professor Peter Ralph from UTS.

Australia is one of the largest producers of coal and gas in the world. While the country has adopted a target of neutralizing its (greenhouse gas) emissions by 2050, the country’s prime minister Scott Morrison has stated that he will not include this target in the legislation. The Prime Minister of Australia wants to achieve carbon neutrality by investing in modern technologies, including financing them with the amount of 20 billion Australian dollars.

Main photo source: reuters

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