Trinidad and Tobago, though a relatively small contributor to global greenhouse gas (GHG) emissions, presents a distinctive emissions profile shaped by its hydrocarbon-based economy and energy-intensive industrial sector. Petrochemicals and power generation account for nearly 80% of national emissions, and the Government of the Republic of Trinidad and Tobago (GORTT) has pledged reductions under its Nationally Determined Contributions (NDCs) by 2030.

 

The country's GHG inventory relies on Tier-1 default emission factors (EFs) from the Intergovernmental Panel on Climate Change (IPCC). These generalised values do not reflect Trinidad and Tobago's advanced infrastructure and operational practices, creating risks of misrepresentation in national reporting. This study addresses that gap by applying a mass-balance methodology to national production and consumption data across the natural gas network, to derive country-specific EFs for key nodes and comparing them with IPCC defaults. The approach allows for quantification of uncertainties, identification of variability drivers, and recognition of data gaps in existing inventories.

 

The results are expected to improve the accuracy and credibility of Trinidad and Tobago's emissions reporting, strengthen policy design, and support efficient allocation of mitigation investments. By providing scientific, locally derived EFs, the study enhances Trinidad and Tobago's ability to meet its NDC targets, attract climate finance, and reinforce its position in international negotiations. Ultimately, this work not only advances inventory precision, but also contributes to the country's climate resilience and its alignment with UN Sustainable Development Goals.