GHG and ESG Monitoring: From Reporting to Action
ESG reporting is changing.
For years, many companies treated sustainability data as an annual reporting exercise. Energy consumption, greenhouse gas emissions and other indicators were collected, consolidated and disclosed once a year.
That is becoming less sufficient.
As climate regulation develops, investors and business partners increasingly request environmental data, and companies face greater pressure to demonstrate measurable progress. The value of ESG monitoring is therefore shifting from reporting what happened to understanding what is happening and deciding what to do next.
For businesses operating in Thailand, this shift is particularly relevant. In 2026, Thailand's Department of Climate Change and Environment consulted businesses and government agencies on systems for collecting, storing, linking and exchanging corporate GHG emissions data. The government is also developing the country's broader climate legislation. Department of Climate Change and Environment
The question for companies is increasingly not whether they will need better climate data, but whether they have the systems to produce it.
Start with the carbon footprint
The GHG Protocol provides the most widely used framework for corporate greenhouse gas accounting, dividing emissions into three scopes. GHG Protocol
Scope 1 covers direct emissions from owned or controlled sources, such as fuel combustion.
Scope 2 covers indirect emissions from purchased electricity, steam, heating and cooling.
Scope 3 covers other indirect emissions across the value chain, including purchased goods and services, transportation, business travel and other activities.
Thailand's Greenhouse Gas Management Organization, TGO, also uses this structure for organisational carbon footprinting. Its guidance is intended to help organisations identify emissions sources, establish reduction targets and support emissions reduction. TGO
The challenge becomes significantly greater with Scope 3 because companies need data from outside their direct operational boundaries. In 2026, TGO also published updated guidance relating to Scope 3 reporting for businesses.
This makes one thing increasingly important: data quality.
Measurement alone is not enough
A company may know that its electricity consumption increased by 10%. But what does that actually tell management?
Was it caused by higher activity, longer operating hours, additional facilities, equipment performance or weather?
The same question applies to logistics, procurement, packaging and other value-chain activities.
The useful question is therefore not simply:
"How much did we emit?"
It is:
"Where are the emissions coming from, why are they changing, and what can we do about them?"
That requires monitoring rather than simply reporting.
A practical system can connect:
Operational data → emissions → hotspots → action → measured results
For example, an increase in electricity consumption could trigger an investigation into building performance or equipment efficiency. A significant logistics footprint could lead to route optimisation, fleet changes or supplier discussions. Procurement data could identify materials or suppliers responsible for a significant share of Scope 3 emissions.
The objective is to make the data useful to the people who can actually change the outcome.
What should companies monitor?
GHG emissions are only one part of ESG.
A focused ESG monitoring framework can bring together the indicators most relevant to the organisation.
Environmental
Energy | GHG emissions | Water | Waste | Materials | Climate risk
Social
Health & safety | Workforce | Training | Employee indicators | Community impacts
Governance
Policies | Accountability | Compliance | Risk management | Targets
The objective should not be to collect every possible ESG metric.
It should be to identify indicators that are material, measurable and actionable.
This is increasingly relevant to financial reporting. IFRS S2, the ISSB's climate-related disclosure standard, includes Scope 1, Scope 2 and Scope 3 emissions alongside climate-related risks, opportunities, governance, strategy, risk management, metrics and targets. IFRS Foundation
Thailand's SEC has also been moving sustainability disclosure requirements toward the ISSB framework. Thailand SEC
What does good monitoring look like?
The answer is not necessarily a more complicated dashboard.
It is a better management process.
1. Define the boundary Know which entities, facilities, activities and value-chain categories are being measured.
2. Establish the baseline Create a consistent GHG inventory and document the methodology, assumptions and data sources.
3. Find the hotspots Identify the activities responsible for the largest emissions, resource use or ESG risks.
4. Set targets Translate the baseline into measurable objectives with clear timelines.
5. Assign responsibility Every significant action needs an owner, budget and deadline.
6. Monitor and verify Track performance regularly and investigate significant changes instead of waiting for the annual report.
This is where ESG monitoring becomes a business tool.
A useful dashboard should be able to answer:
What changed? Why did it change? Where is the biggest opportunity? Who is responsible? What action is underway? What will it deliver?
The scale of the data challenge
Sea Limited's 2024 Sustainability Report provides an indication of the scale involved for a large digital business. Sea reported 502,651 tCO₂e of Scope 1 and Scope 2 emissions and 1,453,753 MWh of operational energy consumption in FY2024. Purchased electricity was its largest Scope 1 and 2 emissions source, followed by its owned and operated vehicle fleet. Sea Limited 2024 Sustainability Report
This demonstrates why ESG data cannot sit only with a sustainability team. Facilities, operations, procurement, logistics, finance and management all influence the underlying numbers and the actions needed to improve them.
The wider market is moving in the same direction. CDP reported that more than 23,100 organisations disclosed environmental data in 2025, with 640 investors representing US$127 trillion in assets requesting disclosure. Its supply-chain programme also involved more than 270 major buyers requesting information from approximately 45,000 suppliers. CDP
From data collection to decisions
The real value of GHG and ESG monitoring is not the report produced at the end of the year.
It is the visibility created throughout the year.
Companies can use reliable data to identify operational inefficiencies, prioritise investments, engage suppliers, manage climate risks and demonstrate progress to stakeholders.
As Thailand's climate and disclosure landscape develops, organisations that build reliable ESG data systems now will be better positioned to turn reporting requirements into practical management information.
What’s your carbon footprint telling you?
GBCE can help you measure your organisation’s carbon footprint, identify the biggest sources of emissions and turn the findings into practical reduction strategies.
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