Greenhouse Gas Protocol

The Greenhouse Gas Protocol is the most widely used international accounting tool for government and business leaders to understand, quantify, and manage greenhouse gas emissions. GHG Protocol establishes comprehensive global standardized frameworks to measure and manage greenhouse gas emissions from private and public sector operations, value chains and mitigation actions.

Clean Fleet Management Toolkit
Clean Fleet Management Toolkit

Clean fleet management can reduce the adverse environmental impacts of vehicles, improve their efficiencies, and lower vehicle operating costs. The UNEP-TNT Toolkit for Clean Fleet Strategy Development provides a starting point for organizations which are actively looking for ways to clean up their fleet. It contains tools that aims to enable fleet managers and other interested stakeholders to raise awareness on the impacts of vehicle fleets, assess the impacts of vehicle fleets, understand the actions that can be taken to move towards cleaner fleets, develop a clean fleet strategy, and implement and monitoring action.


Today, air quality in many Asian cities exceeds the World Health Organization (WHO) guideline limits for the protection of human health. According to WHO, 92% of the world’s population now live in places where air quality levels exceed health...

A quantitative assessment of emissions from air pollution sources is required in taking appropriate action to improve air quality. Emission Inventories or ‘EI’ and Air Quality Models are tools used to determine specific source types and their...

Ambient air quality standards and air quality monitoring are two important measures vital to the success of an air quality management system. The establishment of standards is an essential tool to help protect public health and the environment....