Net zero: Definition
Net zero represents a condition where the emission of greenhouse gases into the atmosphere is offset by an equivalent removal of greenhouse gases. In a system that has achieved net zero, the overall quantity of greenhouse gases (GHG) in the atmosphere remains steady. In practical terms, discussions about net zero predominantly revolve around companies and countries, as they establish net zero targets to direct their efforts in reducing GHG emissions. However, the aspiration to attain net zero can extend to individual persons, specific industries, geographical areas, or even the entire planet.
For Sustainability Managers
Understanding Net zero is essential for accurately tracking and reducing your organisation's carbon footprint.
For CFOs
Net zero has growing financial implications as climate regulation tightens and investors demand transparency.
For Sustainability Reporting
Accurate measurement of Net zero is required for credible climate reports across all major frameworks.
Related Terms
ACCU
Australian Carbon Credit Units (ACCUs) are financial instruments awarded to eligible projects involving energy efficiency, renewable energy generation, and carbon sequestration. Each ACCU represents the avoidance or removal of one tonne of carbon dioxide equivalent (tCO2-e) GHG emissions. ACCUs are traded or sold on the national environmental commodity market through carbon market agents, allowing organisations to offset their carbon footprint or fulfil emissions reduction obligations.
Activity-based method
Activity data specifies the quantity of a particular product or material a company has purchased, enabling more precise emissions estimates than spend-based data. This method employs emission factors obtained from scientific studies.
Additionality
Additionality is a principle applied to carbon removal projects, signifying that a project is additional if it leads to emissions reductions that would not have occurred otherwise.
Base year
Setting emission reduction targets entails specifying a base year and establishing annual reduction goals as a percentage of emissions from the base year.
Cap and trade
Cap and trade is a market-based approach to lowering GHG emissions, where authorities allocate permits for a limited amount of emissions, enabling trading among companies to meet their emission limits.