Quality Growth Boutique

Inflation’s illusion on carbon intensity – don’t be deceived

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Sudhir Roc-Sennett

Head of Thought Leadership & ESG Quality Growth Boutique

Meet Sudhir


| Read | 4 min

Given most of us have not seen high inflation for many years, if ever, it’s important to remember that inflation distorts the perception of underlying value. Money as a measure can be a strange beast. Beyond taking a hammer to most people’s spending power, inflation has the potential to dangerously distort the read of progress on the reduction of greenhouse gas (GHG) emissions by investors.

One of the most common ways investors track the progress of GHG emissions from their portfolios is using carbon intensity, commonly measured as tons of CO2e per $1 million in revenue1. If inflation in 2021 and 2022 pulls average revenue up say 15% for companies in a portfolio or benchmark, this could knock 13% off their carbon intensity figures2. It is important that investors who are targeting Paris Aligned reductions understand and adjust for this issue – or a couple of years of progress could be squandered.

The chart below outlines the recent history of carbon intensity for the S&P 500 and MSCI Emerging Market (MSCI EM) indices using tons of CO2e/$1 million revenue. I drew in target glidepaths for emissions based on guidance from the Net Zero Asset Managers Initiative (NZAM), which calls for around a 50% cut in emissions by 2030 compared to where they stood in 2019 (and then on to net zero by 2050). On this trajectory, a 13% fall in carbon intensity from where it stood at the end of the last quarter (2Q22), amounts to 2.5 years for ‘progress’ for the S&P 500 and 3 years for the MSCI EM. The grey lines on Figure 1 indicate where a 13% haircut would take the latest figures, assuming nothing else changed. All without lifting a finger…

2022-09-07_inflations-illusion-on-carbon-intensity-dont-be-deceived_chart1_en


The measuring problem stems from the revenue yardstick inside the carbon intensity measure (CO2e per $1 million of revenues). Using revenues as a common unit helps make like-for-like comparisons across industries and by size of business. As inflation lifts prices, sales will grow quicker than the number of items sold – assuming volumes remain steady. So, each $1 million of revenue requires fewer carbon emissions. This can appear as progress as the example below illustrates for an imaginary brewery.

2022-09-07_inflations-illusion-on-carbon-intensity-dont-be-deceived_chart2_en


Many investors are signing up to initiatives targeting the reduction of greenhouse gas (GHG) emissions to limit global warming to 1.5°C. A popular method to do this is to target a glide path and track carbon intensity. For a sense of scale of funds following this path, the Net Zero Asset Managers Initiative (NZAM) already has more than 270 signatories managing US$61 trillion in assets.

Fortunately, in the operating world, most companies with an announced abatement plan are targeting cuts in absolute tons. This challenge is primarily for asset managers who need to track change across a portfolio and deal with practical problems such as how to factor in the contribution from a company without a reduction plan – do you need to forecast growth and its associated emissions for each company through to 2050? Do you ignore the ones without a plan because that amounts to a lot and defeats the object of tracking the portfolio? Intensity comes in handy for these kinds of calculations.

The takeaway: This problem could be overcome by using an alternative yardstick to revenues. Industrial measures such as volume of drinks produced, electricity production MWh, or hours worked by telephone operators can also work. Although intensity is not then compatible between industries, the rate of change is. It would also help gauge progress for companies selling commodities such as oil or grains, where prices bounce around in the market. At this point, very few companies report intensity on industrial unit basis, but it would be helpful.

It is challenging to the institutional investment community to run a marathon before its laced up its shoes. But if investors are using revenue backed carbon intensity as their central tracking metric, then inflation needs to be addressed. There is solid logic in using operating yardsticks when they can be obtained. As carbon emissions are only reported (or estimated) once a year, and often come through a year or so after period end, inflation should not yet be reflected in the numbers above. It’s an important illustration where, for the sake of convenience, data can lose its integrity.

 

 

 

 

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1. CO2e stands for CO2 equivalent. This is the weight of CO2 that would be equal to the emissions of a range of greenhouse gases.
2. Note the calculation is tons of GHG emissions over revenue. So it is the denominator that is rising.

roc_sennett_sudhir

Sudhir Roc-Sennett

Head of Thought Leadership & ESG Quality Growth Boutique

Meet Sudhir