Kowbucha, seaweed, vaccines: the race to reduce cows’ methane emissions

Kowbucha, seaweed, vaccines: the race to reduce cows’ methane emissions

Agriculture is the largest anthropogenic source of this gas, accounting for about 40%, leading innovators to offer new solutions to tackle its bovine source

In 2017, Canadian cattle farmers in Alberta started slipping a special ingredient into their animals’ feed. The cows remained oblivious – their forage tasted no different – but by munching on, they had been enlisted into the fight against the climate crisis.

Related: ‘How is it sustainable if only 1% can afford your food?’: the man on a quest to change farming

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