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Posts by Nicholas D Carter

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The US cattle industry is eating its own tail From rising temperatures to water shortages, ranchers need to be thinking about a plan B

Excellent analysis: "The reality is that the cattle industry is eating its own tail — using up the very resources it needs to sustain itself. It is a clear example of “double materiality” — whereby an industry is the victim of the physical risks it creates for itself."
www.ft.com/content/d287...

1 hour ago 2 2 0 0
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"Under worst-case warming scenarios (∼3.6°C), 40.7% ± 1.0% of the global population could experience heightened compound hot-dry extremes" Cai et al. 2026

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

2 days ago 41 18 2 0
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More Crops Grown for Fuel and Livestock Feed Than for People, New Study Finds Cutting back on beef and biofuels could help improve food security and mitigate climate emissions.

We grow enough food to feed the world — so why are 733 million people still going hungry? A new study co-authored by Project Drawdown scientists finds that more than half of global crop calories never reach a human plate, diverted instead to livestock feed and biofuels. 🌽
🔗 https://bit.ly/4vch2h4

1 week ago 77 44 1 3
"Tallow can be used to make biofuels, and is extracted by grinding cattle trimmings into a slurry and stewing it at high heat. Illustration: Filipe Almeida"

"Tallow can be used to make biofuels, and is extracted by grinding cattle trimmings into a slurry and stewing it at high heat. Illustration: Filipe Almeida"

Quite the timeline we're on, turning deforestation linked animal fat into jet fuel and calling it sustainable.

There are so many environmental accounting tricks that hide the true impact of harmful practices.

unearthed.greenpeace.org/2026/04/10/u...

1 week ago 16 2 0 0
Only half of the calories produced on cropland go directly to human consumption, with the bulk of the remainder used for fuel or feed. Credit: Project Drawdown

Only half of the calories produced on cropland go directly to human consumption, with the bulk of the remainder used for fuel or feed. Credit: Project Drawdown

The global food system loses 7.22 quadrillion calories/yr (enough to feed 7.2B people) driven largely by 91% cal loss in beef production that uses 40% of cropland for just 9% of animal-source calories.

Must-read new study on how crops are used:
drawdown.org/news/only-ha...
doi.org/10.1088/2976...

3 weeks ago 9 5 0 1

Of all the crops we grow on Earth — with huge impacts on land, water, biodiversity, and climate — less than half of them actually become FOOD.

3 weeks ago 45 18 1 1

Eating meat is morally wrong. So is being extremely rich, spanking children, and the death penalty.

4 weeks ago 111 15 12 2
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Everything we need to do to stop climate breakdown, we also need to do for national security. Energy saving, more renewables, more electricity storage and interconnectors, electrification of transport, heating, cooking and industrial processes, plant-based diets. We win on all fronts.

1 month ago 3171 1039 94 67
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Why change when you can “perfect your messaging, tell your story and control the narrative.” World Meat Congress

This led to a JBS dominant "AgriZone" at COP30 with 300 lobbyists, a delegation larger than Canada's 220!

Tracking this disinfo is key: changingmarkets.org/report/dange...

1 month ago 9 1 0 0
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Global patterns of commodity-driven deforestation and associated carbon emissions - Nature Food By integrating the best available spatial and statistical datasets, this analysis estimates the deforestation associated with the production of 184 agricultural and forestry commodities across 179 cou...

Extensive conversion of grasslands & wetlands driven by global food, feed, & bioenergy demand (Kan et al., 2026) doi.org/10.1073/pnas...

Global patterns of commodity-driven deforestation & associated carbon emissions (Singh & Persson, 2026) doi.org/10.1038/s430...

WRI: www.wri.org/insights/glo...

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Two recent studies further show plant-rich food systems are key.

2001-2022: pasture drove 42% of commodity-related deforestation (higher in tropics).

2005-2020: pasture drove 50% of global non-forest ecosystem conversion, & 34% of cropland expansion went to animal feed (80% in some countries).

1 month ago 10 4 1 0
Do cows compete with humans for food?
Do cows compete with humans for food? YouTube video by Crystal Heath

Do cows compete with humans for food?

750 million acres of land are tied to beef cattle production, yet the arable cropland used for cows (40 million acres) could provide protein for 234 million people per year if used for human-edible crops.

#onehealth #foodsecurity

youtube.com/shorts/EWnKn...

1 month ago 5 4 1 0
An infographic from Our World in Data titled "Global land use for food production" uses a series of stacked horizontal bar charts to visualize the distribution of Earth's surface and the disproportionate land requirements of livestock. The first bar shows Earth's surface is 71% ocean and 29% land (141 million km²); the land surface is then broken down into 76% habitable land, 10% glaciers, and 14% barren land. Of the habitable land, 45% (48 million km²) is used for agriculture, while 38% is forests and 13% is shrubland. The agricultural land bar reveals a major disparity: 80% (38 million km²) is dedicated to livestock (meat, dairy, and textiles) including grazing land and cropland for feed, while only 16% is used for crops for direct human consumption and 4% for non-food crops. Finally, two smaller bars at the bottom contrast this land use with nutritional output, showing that while livestock uses 80% of agricultural land, it only provides 17% of global calories and 38% of global protein, whereas plant-based foods provide 83% of calories and 62% of protein.

An infographic from Our World in Data titled "Global land use for food production" uses a series of stacked horizontal bar charts to visualize the distribution of Earth's surface and the disproportionate land requirements of livestock. The first bar shows Earth's surface is 71% ocean and 29% land (141 million km²); the land surface is then broken down into 76% habitable land, 10% glaciers, and 14% barren land. Of the habitable land, 45% (48 million km²) is used for agriculture, while 38% is forests and 13% is shrubland. The agricultural land bar reveals a major disparity: 80% (38 million km²) is dedicated to livestock (meat, dairy, and textiles) including grazing land and cropland for feed, while only 16% is used for crops for direct human consumption and 4% for non-food crops. Finally, two smaller bars at the bottom contrast this land use with nutritional output, showing that while livestock uses 80% of agricultural land, it only provides 17% of global calories and 38% of global protein, whereas plant-based foods provide 83% of calories and 62% of protein.

80% of agricultural land is used for livestock (and textiles), yet this huge land use provides only 17% of our calories and 38% of our protein.

16% of the land used for crops provides 83% of our calories and 62% of our protein. It's past time we rethink what we eat.

2 months ago 755 292 26 28

Great points & the paper highlighting fishmeal sourced from nutritionally vulnerable areas is another reason to stop fish farming.

Insect farming, at scale, would mostly be in the global south (warmer) where they'd face invasive escape risks.

It's a lose-lose.

More plant-rich diets are key.

2 months ago 1 0 0 0

Yes, reducing forage fishing is important. Where have I said otherwise?

Why would trying to do so through a higher GHGs & equally ecosystem risky option like trillions of insects be the answer? Esp when soy is available, or you know, reducing demand for fish farming...

2 months ago 3 0 1 0
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Fish farming is better off with fortified soy since it’s cheaper & lower GHGs, if we assume it's a necessity.

I’m also curious where advocates for this imagine insect mega farms with trillions needing farmed would be located? Likely marginalized communities. It's a terrible goal.

2 months ago 1 0 0 0

About 20% of fish caught is reduced to oil & fishmeal. Let's say there's trillions of insects farmed & fed to farmed fish (costing more $ & GHGs) displacing some fishmeal in a decade. The same fleets have quotas for fish reduced to oil & will likely divert co-product meal to growing chicken/pigs

2 months ago 3 0 2 0

You misread my point. I'm not denying the eco importance of low trophic level fish, that's a strawman

Forage fishing doesn't necessarily decrease if insects manage to displace *some* fishmeal for fish farming. Fish oil & livestock feed use still. And again, see 📃 on big invasive risks with insects.

2 months ago 3 0 1 0

I completely agree with this analysis by Project Dradown, which also had the good taste to include our papers among its references!

Very good summary on their part. 👏

2 months ago 7 2 1 0

Appreciate the comment. You and your co-authors work was very helpful in weighing all the pros and cons.

2 months ago 2 0 1 0

Soy fish-feed has improved with fortifications (synthetic amino acids, protein blends) though, as I understand it, largely making the nutritional difference minimal vs insects. I still don't think even this justifies growth in fish farming but perhaps that's another debate.

2 months ago 2 0 0 0
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Curious if you have a source for that. Yes a good share of fishmeal still comes from wild forage fish, but l'd hypothesize that reducing fishmeal use does little for ocean ecosystems unless fishing pressure is reduced significantly too.

& don't underestimate the risks of invasive insects.

2 months ago 2 0 1 0

Great suggestion Michael thanks. Certainly the location and heating amount needed is a big influence on GHGs, but at best it'll bring to around the same footprint as chicken (see Thailand source), and still won't address ecosystem risks of invasive escapes.

2 months ago 4 0 1 0
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Wow, interesting. 🤯

"However, recent analyses show highly variable and often high life cycle emissions, 4.2–25.8 kg CO₂‑eq per kg of protein for insects as human food, with the upper end of this range approaching the lower bound for beef."

2 months ago 3 2 1 0

Currently, half of farmed insects end up in the pet food market, and only a few percent of total production goes to direct human consumption. In practice, it mostly replaces already low-impact plant ingredients, not high-emission animal products.

2 months ago 2 1 1 0

Well even using insects as fish-feed would still require large, temperature controlled facilities (often FF powered) with grain inputs. And it'd be replacing current fish-meal or soy-meal, both lower emitting.

2 months ago 4 0 2 0

Considering the challenge in suggesting we eat more plants, proposing insect products seems ridiculous.

But it's received $1B to try to scale & now ~80B insects are farmed.

It can actually emit as much as some beef & has major risks.

My first in the Drawdown Explorer:
drawdown.org/explorer/dep...

2 months ago 51 24 5 6
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US beef is underestimated by ~6x if factoring in the missed opportunity to rewild & restore the land used for its production.

And according to this new WRI report, implementing EVERY existing & breakthrough mitigation tech would only reduce US beef carbon costs by 18%:

www.wri.org/insights/tru...

3 months ago 42 13 0 0
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Animal agriculture is the single largest use of Earth's land.

Yet it's rarely mentioned in eco reporting: only 1% of climate journalism even mentions diet change.

Based on 10,696 U.S. climate articles (2022–2025):
www.biologicaldiversity.org/programs/pop... @biologicaldiversity.org

3 months ago 47 22 0 2
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While countries are making progress at measuring & mitigating methane from fossil fuels, we need to increase our efforts in curbing methane from livestock, rice, & food waste.
@paul-west.bsky.social and I explain in our latest article @projectdrawdown.bsky.social drawdown.org/insights/we-...

3 months ago 51 20 0 0