Hey, I’m Kosta …

I’m on a mission to address climate change

When I ask myself, “what’s important”, only one answer sticks: fixing the climate.

A cool, stable climate is the foundation of all life, and human civilization, as we know it.

Our challenge is to invent new ways for our global community to prosper, while honoring this magnificent blue and green planet we call home.

Stop adding, start removing

The atmosphere is where our pretending to be separate ends up.

A hot planet is not a fun planet, so we’ve got two big jobs to do:

  1. First – Deploy solutions to completely eliminate GHG emissions.

  2. Second – Remove carbon to repair the air.

Humanity has to stop adding and start removing, as quickly as humanly possible.

This means fully decarbonizing all human activity, and then achieving carbon removal at scale.

The great news is technology and commercial innovation is underway on both those fronts.

This is what I think about in my sleep, and work on during the day.

Methane matters, a lot

To eliminate emissions, we should tackle the highest leverage, lowest cost activities first.

Methane matters a lot, especially from cattle.

Cow burps account for about ~4% of all GHG’s. That’s more than 2x the emissions of the aviation industry.

There are almost no good solutions, so this is a really important challenge to crack.

I’m proud to say Rumin8 is doing really amazing work on this. After 5 years of development, we’re approaching the point where we will have impact at scale.

Repairing the air

The metric that matters most is absolute concentration of CO2 in the atmosphere.

At 430ppm, it’s the highest it’s been in 3 million years 3 million years, and 2024 was the hottest year in 125,000 years.

That means every living organism doesn’t know what it’s like to live in a sauna. Not ideal.

These are the coolest years we’ll experience for the rest of our lives.

Atmospheric CO2 needs to back to down to safe levels, around 300 ppm. To achieve that, we’ll need to pull about 1 trillion tons of CO2 out of the atmosphere.

My work

I am working to scale a radically effective solution to livestock methane emissions at Rumin8.

We have humbling backing from some of the most visionary investors in the world, including Breakthrough Energy, Prelude Ventures, Starshot Capital, AgriZero, Conscience Bay, Aware Super, Harvest Road, and Climate Capital .

I’m on a decade-long push to build companies that can solve the largest challenge humanity has ever faced. Once Rumin8 has achieved it’s mission, you’ll find me working on the next big part of the puzzle.

About me

I believe that business is a powerful vehicle for change.

Grew up in a small country town in Australia.

Have traveled to 65 countries and lived in 11 cities. Spent 8 years in NYC.

These days I split my time between Miami and Sydney, but mobile is the new normal, so also Europe, New Zealand and Brazil.

Economics, Law, Finance grad. Systems thinker.

Career that looks like a wild ziz-zagging line. Strategy and innovation is the clear through-line.

Favorite book: Meditations, Marcus Aurelius.

Favorite quote: “Consider yourself dead. You’ve lived your life. Now take what’s left and live it properly.”

Laser focused on the next decade, because it matters.

Let's talk

I love meeting incredible people who are doing meaningful work that helps us move forward.

Currently building networks in agriculture, carbon markets, and climate tech investment.

If you're working on something cool and you think my perspective would be helpful, let’s talk.

I find immense joy in elevating the ideas of others. Whipping ideas into shape is my jam.

If you think I can help, feel free to schedule a call.

Let’s connect on LinkedIn … or feel free to drop me an email.