Understanding the Distinction between Carbon Neutrality and Net Zero
Unravelling the Paths to a Sustainable Future
In recent years, the world has seen an increased focus on combating climate change and transitioning towards a more sustainable future. Among the buzzwords dominating the conversation are “carbon neutrality” and “net zero.” While these terms are often used interchangeably, they carry distinct meanings and implications for our efforts to reduce greenhouse gas emissions. In this article, we will explore the difference between carbon neutrality and net zero, shedding light on the pathways to a greener world.
The Three Scopes of Carbon Footprinting:
The first step in achieving either of these targets is to determine a baseline of current emissions by undertaking a carbon footprint assessment. The “three scopes of carbon footprinting” provides a framework to comprehensively assess and manage greenhouse gas emissions. These scopes are defined by the Greenhouse Gas Protocol, the standard for greenhouse gas accounting. Let’s explore each scope:
Scope 1: Direct Emissions – Scope 1 covers direct emissions from sources that are owned or controlled by the reporting entity. This includes emissions from on-site fuel combustion (e.g.: in company vehicles and boilers) and other direct industrial processes.
Scope 2: Indirect Emissions from Energy Use – Scope 2 includes indirect emissions from the consumption of purchased electricity, heat, or steam generated off-site. These emissions occur outside the reporting entity’s own facilities but are associated with the entity’s energy consumption.
Scope 3: Other Indirect Emissions – Scope 3 encompasses all other indirect emissions that occur as a result of the reporting entity’s activities but are beyond their direct control or ownership. All most all associated emissions fall into this category, including emissions from business travel, supply chain activities, product life cycles, and waste generation.
By categorising emissions into these three scopes, organisations can gain a comprehensive understanding of their carbon footprint and identify areas where they can implement effective emission reduction strategies. It also allows for better communication of what has been included in emission assessments. From here, it is possible to initiate steps to carbon neutrality and net zero.
Carbon neutrality is a concept centred on achieving a balance between the amount of carbon dioxide (CO2) emitted into the atmosphere and the amount removed. Two offsetting mechanisms are used to achieve carbon neutrality, namely carbon removal or carbon avoidance. The former refers to actively removing carbon dioxide from the atmosphere through initiatives such as afforestation or carbon capture and storage. Carbon avoidance relates to the investment in low carbon technologies and renewable energy projects that prevent the continued use of carbon intensive fuels and activities, ultimately reducing the amount of CO2 released into the atmosphere.
For an entity, such as an organisation, to achieve a state of carbon neutrality current greenhouse gas emissions must be measured to ensure an equivalent amount is offset. There is no obligation to reduce carbon emissions under the ‘carbon neutral’ label, although many certification schemes require a decarbonisation pledge to encourage engagement in active carbon reduction.
Net zero takes the concept of carbon neutrality a step further. Net zero represents the ultimate goal of halting increases in atmospheric greenhouse gas emissions. While carbon neutrality focuses on emissions equilibrium through external offsetting projects, net zero requires more ambitious actions to actively reduce CO2 emissions at the source. Net zero requires the measurement and reduction of all associated emissions, both direct and indirect, highlighting the importance of responsible sourcing and forward thinking in terms of material disposal. A ‘net zero’ state can only be achieved when all associated emissions have been reduced as much as possible.
Strategies and technologies should be implemented to target emission reduction as a long term goal, rather than relying solely on offsetting. This means shifting away from fossil fuels and increasing the deployment of renewable energy sources such as solar, wind, and hydroelectric power. This transition reduces the carbon intensity of energy production and consumption. Moreover, enhancing energy efficiency across industries, buildings, and transportation systems to minimise energy wastage and reduce emissions associated with energy consumption. Once CO2 emissions have been reduced as much as possible, only then are residual emissions actively balanced through carbon removal.
Understanding the Key Differences between carbon neutrality and net zero:
- Scope of Emissions: Carbon neutrality can refer to an item, a service or an organisation, with the associated emissions in producing the item, providing the service or running the organisation balanced through offsetting. Net zero on the other hand encompasses the entirety of an entity’s activities, including all upstream and downstream affiliations. Alignment of decarbonisation goals within supply and value chains are essential to achieving the ultimate net zero goal.
- Timing: Carbon neutrality is a state that can be achieved at a given moment in time and is often used as a short term goal, with emission reduction resulting in reduced offsetting cost. Net zero is the long term goal of absolute emission reduction, requiring the commitment of all associated organisations.
- Ambition Level: Carbon neutrality offers the benefit of achieving a balance in emissions, but it is impossible for the world to be carbon neutral! Net zero necessitates the deeper emission reduction required to contribute to global efforts to reach climate change targets.
The Importance of Clear Definitions:
As global efforts to combat climate change intensify, it is crucial to have precise definitions of terms like carbon neutrality and net zero. Ambiguity or misuse of these terms can lead to greenwashing, where entities falsely present themselves as environmentally friendly without genuinely reducing their carbon footprint.
Understanding the difference between carbon neutrality and net zero is essential for informed decision-making. When individuals, organisations, or governments set climate targets, they must choose the appropriate term that aligns with their environmental commitments and capacity for action.
In conclusion, carbon neutrality and net zero represent critical milestones in our journey towards a sustainable future. While both concepts are used interchangeably, they differ dramatically in their scope, timing, and ambition. By comprehending these distinctions and promoting clarity in their usage, we can foster genuine progress in mitigating climate change and securing a cleaner, healthier planet for future generations. Embracing transparency and actively working towards these goals will enable us to turn the tide on climate change, leading us to a more sustainable and resilient world.