Singapore

The UK Government issues emission conversion factors for use by UK and international organisations to report on greenhouse gas emissions. The key responsible departments / agencies are / were: BEIS , DEFRA, DESNZ and NAEI.

Cloud Carbon Footprint is a free and open-source emissions measurement and analysis tool. It provides emission factors and methodology for measuring the emissions of Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP).

Climate TRACE (Tracking Real-Time Atmospheric Carbon Emissions) is a collaborative initiative aimed at providing precise, real-time tracking of global greenhouse gas emissions using artificial intelligence, satellite image processing and other remote sensing technologies along with academic research and publicly available data.

ecoinvent is a Swiss not-for-profit association that provides a Life Cycle Inventory (LCI) database that supports various types of sustainability assessments. This data enables users to gain a deeper understanding of the environmental impacts of their products and services.

The Energy Market Authority (EMA) is a statutory board under the Ministry of Trade and Industry in Singapore. They issue average CO2 emission emitted per unit of electricity.

Google is a global internet services company. They calculate and publish carbon emissions associated with their operations in their data centres, using hourly grid mix and carbon intensity data from Electricity Maps.