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WorldGBC updates Net Zero Carbon Buildings Commitment to include embodied carbon

Lucy Dixon
17.09.2021
Ahead of COP26, the World Green Building Council (WorldGBC) has updated its Net Zero Carbon Buildings Commitment to include new requirements for addressing embodied emissions, plus it has published best practice for carbon offsetting for the built environment.

In addition to the Net Zero Carbon Buildings Commitment requiring all building assets within direct control to account for all operational carbon emissions (released from the energy used to heat, light, cool and power them) by 2030, from 1st January 2023 businesses and organisations will also be required to:

  • Account for whole lifecycle impact of all new buildings and major renovations by mandating they are built to be highly efficient, powered by renewables, with maximum reductions in embodied carbon and compensation of all residual upfront emissions.
  • Track and report business activities that influence the indirect reduction of whole life carbon emissions.

This step is expected to drive similar levels of action from the sector as reported in the recently released Advancing Net Zero Status Report 2021, which highlights how signatories are embedding the Commitment requirements into their business operations, and help the sector advance its decarbonisation goals.

How the Commitment drives decarbonisation with a reduction-first approach

WorldGBC’s Whole Life Carbon Vision for the sector includes a roadmap for the decarbonisation of the built environment, with critical 2030 interim goals and total decarbonisation by 2050. It is outcomes based and action focused, requiring signatories to develop a bespoke roadmap to decarbonise their portfolios by following best practice principles prioritising reduction of energy consumption and embodied carbon, and the use of renewable energy.

This means that all new developments and renovations will also prioritise the efficient use of low carbon materials and construction processes, reduce reliance on fossil fuels in construction, and support the transition to a fully decarbonised built environment.

To encourage a best practice approach to decarbonisation, and facilitate net positive impact in pursuit of net zero emissions, WorldGBC has published a guidance document for the sector — Advancing Net Zero Whole Life Carbon: Offsetting Residual Emissions from the Building and Construction Sector. 

As part of the transition towards total sector decarbonisation that also enables tangible environment and social co-benefits in support of the Sustainable Development Goals, the guidance document promotes a best practice-approach to offsetting detailed in three principles:

  1. Prioritise emissions reduction 

Minimise the need for offsets in the first place via best practice sustainable construction and operation. This means reducing energy demand, shifting away from fossil fuels, and using 100% renewable energy as soon as possible.

  1. Compensate for residual emissions 

For any residual emissions – those which cannot be abated – invest in carbon reduction or storage projects that are credible, unique, additional and permanent, as determined via independent third party verification.

  1. Advance tangible benefits 

Direct investment into offsets that store carbon and provide additional tangible environmental and/or social improvements, particularly those that have additional nature-based co-benefits or co-benefits in line with the Sustainable Development Goals.

In this approach, WorldGBC encourages the building and construction sector to explore short-term opportunities to support the overall decarbonisation agenda via investment in efforts that enable others to advance their journey to net zero, such as through energy efficiency improvements or establishing access to renewable energy sources. Whilst these sector-based offset projects and non credit based actions are currently under developed, WorldGBC calls on the sector to recognise how this approach is critical to achieving sector decarbonisation goals.

 Cristina Gamboa, CEO of the World Green Building Council, said: “The update to the WorldGBC’s Net Zero Carbon Buildings Commitment elevates the ambition for the building and construction sector to go further and faster to decarbonise. It sets a target for compensating for emissions associated with buildings and construction, and the tangible social and environmental co-benefits of this approach creates a powerful catalyst towards achieving the Paris Agreement goals and the Sustainable Development Goals. Achieving our vision of sustainable buildings for everyone, everywhere means acting now to tackle upfront carbon, whilst planning with whole life carbon in mind.”

 Nigel Topping, COP26 High Level Climate Action Champion, said: “With the buildings sector accounting for 40% of global emissions and 50% of resource consumption, the need for urgent action is critical. WorldGBC’s Net Zero Carbon Buildings Commitment provides a bold approach for businesses looking to be a front runner in decarbonising emissions from buildings by 2030.”