Sustainability & Carbon Acronyms Explained!

Plain English explanations for everyday use

Over the past few years, UK business owners have been inundated with prompts to address their sustainability practices. Much of this has been delivered with an assumption that the audience has a natural understanding the most common acronyms and terms used in the sector. In reality many of them don’t, so let’s cut the jargon and keep it simple – here’s how to tell your ESG from your GHG, and much more!

1. ESG – Environmental, Social, and Governance

• What it means: A framework for assessing how responsibly a business operates in environmental, social, and ethical areas.

• UK business context: Widely used by investors, especially under the UK’s Stewardship Code. ESG reporting is becoming increasingly expected by stakeholders.

2. GHG – Greenhouse Gas

• What it means: Gases that contribute to climate change (e.g. carbon dioxide, methane, nitrous oxide).

• UK business context: Businesses are encouraged – and in some cases required – to measure and reduce their GHG emissions in line with the UK’s net zero targets.

3. CO₂e – Carbon Dioxide Equivalent

• What it means: A way to combine all GHG emissions into a single number based on their warming potential, expressed as if they were all CO₂.

• UK business context: Used in emissions reporting, including government frameworks and sustainability reports.

4. CSR – Corporate Social Responsibility

• What it means: A company’s self-regulated efforts to be socially and environmentally responsible.

• UK business context: Often seen in public sector procurement and by UK-based clients who expect ethical supply chains and climate-conscious policies.

5. SBTi – Science-Based Targets initiative

• What it means: Helps companies set climate action targets aligned with the Paris Agreement.

• UK business context: More UK businesses are committing to SBTi to demonstrate leadership on climate change and attract investment.

6. TCFD – Task Force on Climate-related Financial Disclosures

• What it means: A global framework for disclosing climate-related risks and opportunities.

• UK business context: Mandatory for large UK companies and LLPs as of April 2022. Applies to many listed companies, banks, and insurers.

7. CDP – Carbon Disclosure Project

• What it means: A global platform for disclosing environmental impacts (emissions, water, deforestation).

• UK business context: Many UK businesses submit to CDP as part of supply chain transparency and investor relations.

8. Net Zero

• What it means: Emitting no more greenhouse gases than you remove from the atmosphere.

• UK business context: The UK Government has committed to reach net zero by 2050. As such, businesses are increasingly expected to set and work towards their own net zero targets.

9. Scope 1, 2 & 3 Emissions

• Scope 1: Direct emissions from owned sources (e.g., gas boilers, company fleet).

• Scope 2: Indirect emissions from purchased energy (like electricity and gas).

• Scope 3: All other indirect emissions (e.g., supply chain, business travel, waste).

• UK business context: Many UK businesses are encouraged – or required through frameworks like SECR – to report Scope 1 and 2, and are moving toward reporting of Scope 3. (If you don’t know where to start, we can help).

10. SECR – Streamlined Energy and Carbon Reporting

• What it means: UK regulation requiring large companies to report on energy use and carbon emissions.

• UK business context: Applies to large UK companies (based on turnover, employees, balance sheet). It’s now a mandatory part of annual reporting – there are indications that this may seep in to the SME world within a few years.

11. LCA – Life Cycle Assessment

• What it means: Analysing a product or service’s total environmental impact from cradle to grave.

• UK business context: Used to improve product design, meet eco-labelling standards, or comply with public sector tenders.

12. EPR – Extended Producer Responsibility

• What it means: Puts the cost and responsibility of managing waste (like packaging) onto the producer.

• UK business context: New UK EPR regulations are rolling out from 2024–25, requiring businesses to report and fund packaging waste management.

13. GRI – Global Reporting Initiative

• What it means: International standards for sustainability reporting.

• UK business context: Commonly used by larger UK companies and multinationals for structuring their non-financial disclosures.

14. CSRD – Corporate Sustainability Reporting Directive

• What it means: EU legislation requiring detailed sustainability disclosures.

• UK business context: While it’s an EU directive, UK companies with EU operations or EU-listed securities may still fall under CSRD.

15. ISO 14001

• What it means: International standard for environmental management systems.

• UK business context: Commonly used in the UK to demonstrate sound environmental practices – especially in manufacturing, construction, and services.

16. PPA – Power Purchase Agreement

• What it means: Long-term contract to buy electricity directly from a renewable energy provider or source.

• UK business context: Used by businesses to reduce reliance on fossil fuels and lower Scope 2 emissions, often securing lower energy costs.

There are many more confusing acronyms and terms in the world of carbon and sustainability, we’re always available to help should come across one that you’re unfamiliar with, or if you’re unsure it applies to your business or not.