The Carbonizer

Joro’s Carbonizer™ - the set of algorithms we use to produce carbon footprint estimates, pictured above - calculates your carbon footprint based on how you spend money.

It also accounts for your lifestyle choices based on your answers to the onboarding survey. For instance, Joro would estimate your carbon footprint from Food & Drink today using the fact that you marked yourself as vegetarian in the onboarding survey and spent $100 on groceries and $10 at a coffee shop today.

Joro's goal is to help you build a carbon intuition.

The goal of Joro’s approach is not to be precise at the itemized level. That might feel surprising! But our goal is to help you make decisions that matter.

We seek to provide relatively accurate estimates of the most important drivers of your carbon footprint to drive decision-making with the least amount of pain and manual input.

Instead of helping you compare the carbon footprint of one brand of beef to another, we aim to help you see that the choice of picking chicken over beef is the one you should be relatively more concerned about. We seek to help you develop a carbon intuition around the relative impact of your choices.

We use academic and publicly available data sources to develop our estimation algorithms.


The diagram at the top of this page illustrates how The Carbonizer™  works. Our methodology has been developed in consultation with experts and is consistent with academic methodologies from Massachusetts Institute of Technology, The University of California, Berkeley, and Gothenburg University, Sweden.

Every once in a while we might ask you for more information to improve our estimates.

Collective action is essential to achieving global climate goals.

The climate crisis is a collective action problem. We need solutions that span policy, business, and personal action. In 2018, the landmark UNIPCC Special Report on Global Warming of 1.5C made clear that we need to mobilize all the solutions we can, as quickly as possible. 

Consumer choices influence over 60% of global greenhouse gas emissions.

Mobilizing collective climate action is important. If we can reduce global greenhouse gas emissions by 7.6% each year for the next 10 years, we’ll cut global emissions in half by 2030. That’s what we need to do to keep the world on track for limiting global average temperature rise at 1.5 degrees Celsius.

Doing so will save hundreds of millions of lives.

Good news: living lighter is better for our own health and our wallets’. We estimate the average user who improves their footprint by 7%  will improve health and wellness outcomes and save $250–$1,000 per year.