Throwing away perfectly good milk

grayscale photography of three cows

Some UK social media users have been pouring milk down their sinks and toilets in protest at the trial of a new feed additive that claims to significantly reduce the emission of methane gas in dairy cows, reports BBC News. Since Arla announced that it was trialling Bovaer on 30 dairy farms, “social media users” …

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A (very brief) history of agriculture

This was a piece of course work from my Skills Bootcamp in Regenerative Land-Based Studies at the Apricot Centre earlier this year. It’s an attempt to map out a history of agriculture. It will have missed a very great deal, but I focussed on pivotal events and technological developments that drove population change. Comments welcome. …

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Tipping points

A cloudy landscape viewed from above. The scene includes a low-lying layer of dark clouds or fog, with sunlight filtering through, creating a golden reflection on the surface below. The overall atmosphere is soft and ethereal, with diffused light and contrasting shadows across the horizon.

This week we covered tipping points, critical thresholds in the Earth’s climate system. Crossing a tipping point can trigger self-reinforcing, cascading shifts in the behaviour of Earth’s systems that can be irreversible. Learning more about tipping points at the University of Exeter with Tim Lenton feels like going to the source. The University of Exeter …

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Gaia

A globe resembling the planet Earth seen suspended in the air inside a cathedral.

This week was lectured by Prof. Tim Lenton, and this module keeps setting off lightbulb moments for me. How did life on earth get to be self-regulating? What is life, and what is its effect on the planet? James Lovelock had started looking at the composition of atmospheres of different planets while working at NASA. …

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Limits to Growth

Global Systems Thinking is an optional module for the Food Studies MA at Exeter, but the more I follow it, the more relevant it feels. I wanted a solid underpinning in systems thinking, having been interested in it for some time, but not being able to properly articulate what it was about, or really understand …

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Systems

This week, we’re looking at systems; a lot of this is through the lens of population change. World population and exponential growth Note, the decreasing amount of time between each 1 billion increase. What is the limit to human population growth? James Dyke suggested that this may be a thermodynamic limit, other limits may include …

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