Green House Gases

Judgment of the National Green Tribunal regarding plywood factories operating in Yamuna Nagar, Haryana, 27/05/2025

Judgment of the National Green Tribunal, May 27, 2025 in the matter of Sumit Saini Vs Shree Ram Steel Industries & Others. Sumit Saini, resident of village Damla, District Yamuna Nagar, Haryana had sent a letter petition dated May 14, 2022 to the NGT. The application said that around 25 …

Towards common GHG inventory reporting tables for Biennial Transparency Reports: Experiences with tools for generating and using reporting tables under the UNFCCC

Under the Enhanced Transparency Framework (ETF) of the Paris Agreement, Parties will be required to report information on national GHG inventories using a set of Common Reporting Tables (CRTs). The CRTs can provide an important source of data at the international and national levels. While a final set of tables …

Analysis of heavy-duty vehicle fuel efficiency technology uptake in California and Canada

This study analyzes policies that California, the United States, and Canada have enacted to promote reduced GHG emissions from heavy-duty trucks, how these policies have impacted technology deployment, and lessons that Canada can take as it evaluates policy options to accelerate the deployment of fuel- and GHG-reduction technologies in its …

State of the Global Climate 2020

Irrespective of the widespread surmise that the pandemic-induced lockdowns and shutdowns would lead to less emissions thus reduced impact on the climate, this report released by the World Meteorological Organisation reveals that the global climate crisis worsened Extreme weather combined with COVID-19 in a double blow for millions of people …

The role of LNG in the transition toward low- and zero-carbon shipping

Liquefied natural gas (LNG) used as a bunker fuel has the potential to offer important reductions in atmospheric pollution—that is, air pollutants and greenhouse gas (GHG) emissions - from ships. Compared to traditional oil-derived bunker fuels such as heavy fuel oil (HFO), LNG clearly emits significantly lower quantities of sulfur …

Fuel consumption from new passenger cars in India: Manufacturers’ performance in fiscal year 2019–20

New fuel consumption limits for passenger vehicles are scheduled to take effect in India in FY 2022–23, and this paper examines the performance of manufacturer groups with respect to new passenger vehicles sold in FY 2019–20. The FY 2022–23 standards are much less stringent than the EU 2021 standards, and …

An assessment of the policy options for driving sustainable aviation fuels in the European Union

Despite years of sustained interest in sustainable aviation fuels (SAFs), the industry has been slow to expand in the face of strong economic barriers to deployment. The European Commission’s 2020 ReFuelEU Aviation Initiative aims to boost the production and supply of SAFs, and it is critical that policies guide investment …

Putting a price on carbon: the state of internal carbon pricing by corporates globally

This report provides an update on corporate use of internal carbon pricing globally and developments in carbon pricing regulation, informed by over 5,900 corporate disclosures to CDP in 2020. This incorporates relevant information derived from recommendations of the Task Force on Climate-related Financial Disclosures (TCFD), with which the annual CDP …

Potential impact of corporate climate action in India

Many large Indian businesses have committed to ambitious climate initiatives. However, there exists little understanding of the aggregate impact of these initiatives and how they relate to emissions at the national level. This working paper estimates the collective impact of voluntary climate actions by Indian companies. As climate commitments and …

Long-term strategies in SIDS: blueprints for decarbonised and resilient 1.5°C compatible economies

This briefing outlines why long-term strategies are a fundamental component of national climate policy architecture, and how SIDS can benefit from developing one, both directly in terms of prioritising efforts for achieving the Paris Agreement goals, and indirectly through synergies with other sustainable development and resilience goals. While focus here …

Implications of Paris Agreement on the national emissions reduction efforts

This report discusses inputs for countries to set their mitigation targets under the Paris Agreement, so that those targets are in line with long-term temperature limit. It reconciles different approaches and suggests closing the disparity of the results from the equity and cost-effectiveness approaches through international support. Further, it analyses …

Green cooling in public procurement: How to advance the procurement of climate-friendly and energy efficient air conditioners in the public sector

The information provided within this study shall serve as a basis for tackling barriers in introducing “Green Public Procurement” as well as updating procurement criteria of room air conditioners in order to reduce cooling related energy consumption and GHG emissions of public buildings. Green Cooling has a high potential to …

Accounting for well-to- wake carbon dioxide equivalent emissions in maritime transportation climate policies

This briefing paper outlines a methodology for calculating well-to-wake CO2-equivalent emissions from four fossil marine fuels: heavy fuel oil, very low sulfur fuel oil, marine gas oil, and liquefied natural gas. Well-to-wake emissions, or life-cycle emissions, are the sum of upstream (well-to-tank) and downstream (tank-to-wake) emissions. In addition to CO2, …

The role of the European Union’s vehicle CO2 standards in achieving the European Green Deal

This briefing paper identifies several possible levels of stringency for the post-2021 CO2 standards in the European Union for light-duty and heavy-duty vehicles and compares them against economy-wide greenhouse gas reduction targets for 2030 and 2050, as well as the 2050 target for transport sector emission reductions in the EU …

The economic and environmental benefits from international co-ordination on carbon pricing: Insights from economic modelling studies

This paper assesses quantitative estimates based on economic modelling studies of the economic and environmental benefits from different forms of international co-ordination on carbon pricing. Forms of international co-ordination include: harmonising carbon prices (e.g. through linking carbon markets), extending the coverage of pricing schemes, phasing out fossil fuel subsidies, developing …

Low-cost carriers and U.S. aviation emissions growth, 2005 to 2019

This report provides the first bottom-up, detailed fuel consumption inventory for all commercial flights to, from, and between U.S. airports using our Global Aviation Carbon Assessment (GACA) model. The analysis finds that overall fuel burn and, therefore, carbon dioxide (CO2) emissions from U.S. airlines increased by 7% from 2005 to …

Rail and waterborne - best for low-carbon motorised transport

A new study commissioned by the EEA shows a clear hierarchy of passenger and freight transport modes, in terms of their greenhouse gas (GHG) emissions. Rail and waterborne transport have the lowest emissions per kilometre and unit transported, while aviation and road transport emit significantly more. Alongside shifting to rail …

Measuring the alignment of real economy investments with climate mitigation objectives: the United Kingdom’s buildings sector

This paper explores data and methods to assess the alignment or misalignment with climate mitigation objectives of investments in the construction and refurbishment of residential and non-residential buildings. It takes the United Kingdom (UK) as a case study, where such investments reached GBP 162 billion (EUR 184 billion) in 2019 …

Peaking and net-zero for India’s energy sector CO2 emissions: an analytical exposition

This CEEW study is the first-of-its-kind exercise to outline multiple pathways for India to attain net-zero emissions, rather than fixating on a single scenario or a single year. The study focuses on insights related to four alternative scenarios: 2030 peak–2050 net-zero, 2030 peak–2060 net-zero, 2040 peak–2070 net-zero, and 2050 peak–2080 …

Monitoring, evaluation and learning for climate risk management

As countries respond to the increasing impacts of climate change, evidence-based policy making for climate resilience has become ever more important. This working paper focuses on the role of monitoring, evaluation and learning (MEL) for promoting climate risk management. Effective MEL frameworks support governments and development co-operation in improving decision …

Opportunities for waste fats and oils as feedstocks for biodiesel and renewable diesel in Indonesia

Today, virtually all biodiesel in Indonesia is produced from palm oil. But as the government is seeking to increase biodiesel blending rates in the years ahead, this single feedstock might not be adequate to support those ambitions. Indonesia is also seeking opportunities to produce renewable diesel, a more advanced biofuel …

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