Agriculture has been by far the biggest driver of land change and land degradation worldwide. And yet, it is also fundamental to the very existence of humankind. This mismatch often comes up in public discourse. Over the past year or two, for example, several European countries have seen extensive farmer protests - against rising costs and restrictive environmental regulations, among other things. Environmental groups have responded to the farmers’ appeals mostly with indignation… and yet farmers and environmentalists have a lot in common - at east potentially.

Philippe Birker is co-founder of “Climate Farmers”, and his work is aimed mostly at promoting regenerative agriculture. He and I cover a range of topics in the discussion that follows, from the farmer protests to the relationship between agrochemical companies and government. Along the way, there were several “rabbit holes” that we could have gone down, and several points that I would have liked to challenge Philippe on in greater depth. But, with limited available time, I needed to bookmark most of these for another time and for future guests.

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Insects are among the most abundant organisms on Earth. About 350,000 beetle species, alone, have been described by science and this is considered to be only a fraction of their total number. In a variety of ways, insects are a fundamental part of natural and human-adapted systems. While some cause disease or ruin crops, others play a key role in ecosystem service provision, for example by pollinating certain crops or as food for other beneficial animals and people. Overall, the loss of insect species is a major concern. Some of the more exuberant headlines broadcasting this message have gone so far as to declare an imminent “insectageddon”. However, although many insect species are declining or in danger of decline, there is reason to be wary of such excessive claims. Data need to be carefully considered, revealing the complex patterns of change. Unfortunately the media, in particular, is often incentivized to focus on the more extreme findings and neglect the nuances.

Jane Hill (OBE) is president of the Royal Entomological Society and a professor at the University of York. She helps me to pick apart the "insectageddon" idea, including how valid it is and how it came about in the first place.

Links to Resources

• How worried should we really be about "insectageddon"? - A Guardian interview with Jane in 2022.
• Plummeting insect numbers 'threaten collapse of nature' - An earlier Guardian article, pushing the idea of "insectageddon".
• Worldwide decline of the entomofauna: A review of its drivers - The 2019 peer-reviewed literature review that may have started the "insectageddon" idea, in the journal Biological Conservation.

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Humankind’s transformation of the Earth is embodied in the idea that we are living in the “Anthropocene”. Most people who have heard of this concept were probably unaware that it describes a specific unit of geological measurement - an epoch. A debate has been ongoing for more than a decade about whether to make that designation official - for the Anthropocene to take over from the Holocene epoch. This debate concluded just a few weeks ago with a definitive “no”.

In this episode of The Case for Conservation Podcast renowned Anthropocene expert Erle Ellis explains what happened to the Anthropocene… and why it doesn’t really matter that it was rejected as an epoch. Erle is an environmental scientist who divides his academic time between the university of Maryland in the US, and Oxford University in the UK. He is a prolific author and public commentator on this and related topics.

Links to resources

• Anthropocene: A Very Short Introduction - 2018 book authored by Erle.
• The Anthropocene is not an epoch − but the age of humans is most definitely underway - A recent update from Erle in "The Conversation".

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