Curious about carbon accounting and how it can affect your business? CarbonSuite is here to help! In our Carbon Accounting 101, we’ll walk you through where carbon accounting came from, what it means, and why it matters. Let’s begin.
Since the early 2000s, carbon accounting has been gaining momentum. In recent years it has expanded rapidly. Many governing bodies and regulatory agencies are now even requiring mandatory climate reporting. And the change is happening fast. To illustrate this, we’ve tracked major policy changes over the past 10 years.
As new policies come into place, understanding what exactly is required of your business can be difficult. That’s why we’ve developed a Climate Disclosure Tracker,to keep you up to date with voluntary and mandatory reporting across the world.
But what even is carbon accounting and why do we need it?
Let’s have a look at what carbon accounting, or climate reporting, really means. To understand carbon accounting, first we need to understand greenhouse gases and how they relate to emissions. Once we understand what these emissions are, we will discuss how to calculate them. After, we will learn how to calculate those emissions into a reportable format. Let’s begin.
What are Greenhouse Gasses?
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Sunlight (solar radiation) reaches the earth.
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The earth’s surface and atmosphere absorb some of the sunlight, while they reflect the rest back into space. The Greenhouse Gasses in the atmosphere absorb this light and re-radiate it as heat in all directions. This has a warming effect on the earth.
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The main Greenhouse Gasses are Carbon Dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O), Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs), Sulfur Hexafluoride (SF6), and Nitrogen Trifluoride (NF3).
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We need Greenhouse Gasses to keep the earth warm and at the desired temperature equilibrium to harbor life. Some amount of Greenhouse Gasses are good, and they are crucial for keeping the earth at a livable temperature. If we have too many Greenhouse Gasses, however, they will warm the earth above the temperature equilibrium. This threatens the earth systems, which are designed for milder temperatures.
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Many human activities put additional Greenhouse Gasses into the earth’s atmosphere. Some examples include: burning fossil fuels, mixing cement, manufacturing steel, using fertilizer, and leaking refrigerants.
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Greenhouse Gas “Emissions” emerge when we perform GHG-creating activities like the ones listed above, which further increases the temperature of the earth.
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Note: not all GHGs are created equal. All GHGs have a “Global Warming Potential” (GWP) which represents the total impact a particular gas has on warming the earth. Carbon Dioxide (CO2) is used as the baseline gas and has a GWP of 1. Other more potent gasses like Methane (CH4) and Nitrous oxide (N2O) have GWPs of 25 and 298, respectively.
How are Emissions categorized?
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Scope 1 emissions are directly related to your operations (think company-owned cars / trucks and boilers / furnaces used in a manufacturing process).
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Scope 2 emissions come from purchased energy (think electricity bills).
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Scope 3 emissions include the emissions in your supply chain (such as 3rd party shipping, product end-of-life treatment, as well as emissions from companies you invest in).