Australia’s Agriculture and Land Sector Plan: A Missed Opportunity for Bold Change

Reading through Australia’s new Agriculture and Land Sector Plan, I kept waiting for the moment when it would match the ambition we’re seeing in energy and transport. It never came.

The plan projects a 28% reduction in agricultural emissions by 2050 from today. Because other sectors are decarbonising faster, agriculture will likely make up a growing share of Australia’s remaining gross emissions (37% by 2050), highlighting the challenge and importance of reducing methane and nitrous oxide in the sector.

The plan acknowledges that methane, which dominates agricultural warming, offers our best near-term opportunity to slow warming, due to its shorter atmospheric lifespan but stronger climate forcing effect. Yet the solutions proposed are mostly changes to the existing system: feed additives and a vague mention of “genetics” and “methane vaccines”.

The plan focuses almost entirely on making existing systems slightly better rather than exploring genuinely transformative approaches. There’s no consideration of cellular agriculture, which could dramatically reduce the emissions footprint of protein production. Australian company Vow just became the first to get approval to sell cellular agriculture products here. Our location makes us perfectly positioned to supply Asian markets with these emerging technologies, yet this barely gets a mention.

The efficiency gap between different protein sources is well-documented. Plant-based proteins typically require far less land, water, and energy than animal products. Supporting diversification into high-value plant proteins or new food technologies could open new opportunities and cut emissions. The plan gives limited attention to these possibilities.

What’s particularly frustrating is that agriculture is being treated as uniquely exempt from the scale of change we’re demanding everywhere else. We’re electrifying transport, revolutionising energy generation, and reimagining our built environment. The strategy for this sector relies heavily on incremental improvements, and without a broader vision it risks falling short of the kind of transformation we’ve seen in energy and transport.

I understand the challenges. Food production is essential, farmers’ livelihoods matter, dietary change is personal and complex, and livestock is a harder sector to decarbonise than electricity. But none of this should excuse us from having an honest conversation about what meaningful emissions reduction in agriculture actually requires.

Reforestation plays an important role in the plan and can create major carbon benefits. However, relying heavily on offsets risks postponing deeper changes within agricultural systems themselves. While historic, it’s worth noting that much land clearance in Australia has been for agriculture. For example, 93% of vegetation clearing in Queensland from 2018-19 was for pasture.

The sector plan reads like we’re hoping to innovate our way around fundamental inefficiencies without questioning the system itself. Other countries are investing heavily in alternative proteins and cellular agriculture. Singapore is becoming a hub for food innovation. The Netherlands announced €60 million of funding for cultivated meat and precision fermentation under the National Growth Fund. Where’s Australia’s vision for agricultural transformation?

This doesn’t mean abandoning traditional farming. It means giving producers more options and supporting them through change. It means investing in the infrastructure and research that make Australia a leader in sustainable protein production. It means taking farmers seriously as businesspeople who can adapt and thrive with the right support.

Seven years ago, I wrote about these same issues for my Per Capita Young Writers’ Prize essay. It’s disheartening to see how little the conversation has progressed. We’re still treating agricultural emissions as somehow too hard, too sensitive, or too different to tackle with the same urgency we’re bringing to other sectors.

All views expressed are my own.

Carbon offsetting is underrated

The average Australian produces emissions equivalent to 15 tons of CO2 each year. Naturally, we want to reduce this as much as is practicable — using less electricity, getting rooftop solar, changing our diet, etc. Much of my own work has a focus on decarbonising the energy system.

For the rest of our impact, it’s also natural to explore carbon offsets to try and bring our net impact on the climate to zero. The average cost of an eligible carbon offset in Australia is $25 per ton of CO2. That’s $375 to offset your emissions for a year. Relative to the effort of changing ones’ purchases and behaviour, that’s quite cheap.

But as with the cost to impact ratio of all charities, offsetting emissions follows a Pareto-like distribution (~20% of charities are responsible for ~80% of impact).

A $179AU donation to the Clean Air Task Force is expected to prevent 100 tons of carbon emissions – significantly more effective than most gold-standard offsets, and the same donation to The Good Food Institute is expected to prevent 33 tons, around the same as 20 long haul flights.

Effectively, for a $27 donation each year, one can offset all their emissions.

It’s quite significant that the charity which seems to be the second most effective for offsetting emissions happens to be one of the most impactful places to donate to reduce farmed animal suffering. It’s for this reason that they’re the charity I have donated the most to in dollar terms since 2015. Feed two birds with one scone, as they say.

I hope the takeaway from this is not that there’s no point taking individual actions to reduce one’s emissions, but rather that you can increase your impact further by taking a scientific approach to offsetting your climate impact. And why stop at offsetting only your own impact?

Thanks to Mieux Donner for most of the analysis that informed this post, and Hannah Ritchie of Our World in Data for the data behind the above infographic.

Seeding the Stars: Could We Plant Life on Other Worlds?

What if Earth’s first microbes weren’t homegrown, but carefully planted by an ancient alien civilization? In this exploration of directed panspermia, we dive into one of science’s most fascinating questions: could intelligent beings seed lifeless planets with the building blocks of life?

Join us as we investigate the possibility that Earth itself might be a cosmic garden, and explore humanity’s potential role as future universe gardeners. Can we seed other planets with life, and should we?

To help me answer these questions, I reached out to Asher Soryl, who recently coauthored a paper with Anders Sandberg on directed panspermia. The paper is forthcoming in Acta Astronautica, and you can contact Asher to get an advance copy.

What a Trump Presidency Means for AI and Humanity

Many people believe artificial general intelligence will be developed in the next 3 to 4 years. If this is true, the decisions made by the Trump administration could be critical in shaping how transformative AI is deployed, how safe it is, and key arms race-style dynamics. Trumps position and actions on AI really matter. In this video, I covered updates from the last few weeks on DeepSeek and Trump’s position on AI.

While relevant Metaculus predictions haven’t shifted dramatically (median AGI timeline moved slightly closer to 2026), I’d argue that the nature of how we might reach AGI has become riskier. The removal of safety testing requirements and the emphasis on beating China could pressure even traditionally cautious AI labs to move faster than we’d like.

Should Humans Play God on Mars?

Explore the mind-blowing ethical challenges of transforming Mars into a habitable planet! 🔴➡️🌍

Is terraforming humanity’s next great adventure or a massive moral minefield? In this video, we dive deep into:

⭐ The potential benefits of creating a “backup planet” for humanity

⭐ Massive resource trade-offs and opportunity costs

⭐ Unexpected ethical considerations about introducing life to Mars

Whether you’re a space enthusiast, ethical thinker, or just curious about humanity’s future, this video unpacks the complex questions surrounding Mars terraforming.

Can we terraform Mars?

Can we really terraform Mars and turn the it into a home for humans? Elon Musk says yes.

What does Elon want to do and what are the challenges? In this video, we explore the science behind transforming Mars into a habitable planet – from using orbital mirrors and nanorods to creating oceans and atmospheres. In this video, I break down the real possibilities and challenges of making Mars our second home.

Finding Purpose by Living on $29K USD & Giving Away the Rest

In this video, I talk about my story of how I came to find my life purpose by dedicating myself to improving the world as much as possible.

I now live on $45,000 AU (after tax and adjusted for inflation from 2016) a year and donate the rest to charities that make a real impact. In this video, I’ll explain why I chose this path, how it’s brought me true happiness, and how I still live comfortably.

Consider taking the Giving What We Can pledge—no matter the amount, it can make a big impact! Try the Giving What We Can trial pledge.

Hera: ESA’s Probe to Study Asteroid Deflection

Exciting news! I’ve partnered with a professional video editor for my latest video on the space probe Hera. I hope you enjoy it with the improved production quality (hopefully, but not too hard considering I’m not an editor)!

ESA’s Hera mission, launching on the 7th of October 2024, will investigate the aftermath of NASA’s DART asteroid deflection test on Dimorphos. This video explores Hera’s objectives, including detailed crater imaging and internal structure mapping using CubeSats, and explains why asteroid deflection technology is crucial for planetary defense.

In this video, learn about the various asteroid deflection methods, the challenges of understanding asteroid structures, and how Hera’s findings could shape future space exploration and Earth protection strategies.

How launch escape systems save astronauts

Have you ever wondered how astronauts stay safe in the event of a failed launch? That’s where the launch escape system comes in. These come in three flavours, solid rocket motor, liquid rocket motor, or ejector seat. In this video, we’ll talk about how these work, and show you some live examples using the spaceflight simulator Reentry.

LES’s that we cover: Mercury, Apollo, Soyuz, Shenzou, SpaceX’s crew Dragon capsule, Boeing’s Starliner, Blue Origin’s New Shephard, Gemeni, and Vostok. We also cover why the space shuttle didn’t have an LES, and what it had instead.