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Browse publications
Net Zero Stocktake 2022
Publication date 13 Jun 2022

The Net Zero Stocktake 2022 report shows that target-setting momentum continues and measures of quality are improving, but also that an alarming lack of credibility pervades the entire landscape.

Unpacking the COVID-19 rescue and recovery spending: an assessment of implications on greenhouse gas emissions towards 2030 for key emitters
Publication date 11 Mar 2022

We developed a new framework to categorise rescue and recovery spending measures according to their level of greenness and their type of expected impact on greenhouse gas emissions.

Corporate Climate Responsibility Monitor 2022
Publication date 07 Feb 2022

Assesses the climate strategies of 25 major global companies. It critically analyses the extent to which they demonstrate corporate climate leadership.

Twenty years of climate policy: G20 coverage and gaps
Publication date 02 Nov 2021

In this Climate Policy publication, we show that the number and coverage of climate change mitigation policies have increased in the past twenty years, but important policy adoption gaps remain. Despite this increase, slow progress towards reducing global emissions and meeting the collective Paris climate goals calls for more comprehensive climate change mitigation policies. Filling policy adoption gaps presents a concrete strategy to improve sectoral, national and global climate policy. Main findings: The number and coverage of climate change mitigation policies have increased in the past...

The Emissions Gap Report 2021
Publication date 26 Oct 2021

This is the twelfth edition of the United Nations Environment Programme (UNEP) Emissions Gap Report. It assesses the gap between estimated future global greenhouse gas (GHG) emissions if countries implement their climate mitigation pledges and the global emission levels from least-cost pathways that are aligned with achieving the temperature goals of the Paris Agreement. This difference between “where we are likely to be and where we need to be” has become known as the ‘emissions gap’. The report also examines further areas that are highly relevant for bridging the gap: updated NDCs and Net...

Publication in Nature Climate Change: Wave of net zero emission targets opens window to meeting the Paris Agreement
Publication date 16 Sep 2021

This article published in "Nature Climate Change" analyses the recent wave of national net zero targets showing that there is significant momentum which could bring the temperature limit of the Paris Agreement within reach. Summary: A total of 131 countries are discussing, have announced, or have adopted net zero targets, covering 72% of global emissions. National net zero emission targets could, if fully implemented, substantially lower projected temperature increase compared to currently implemented policies (2.9–3.2 °C) or pledges submitted to the Paris Agreement (2.4–2.9 °C). While being a...

Climate Action Tracker Global update: Climate target updates slow as science ramps up need for action
Publication date 15 Sep 2021

In these briefings, the Climate Action Tracker (CAT) introduces its new rating methodology, which now rates more elements than before – mitigation targets in Nationally Determined Contributions (NDCs), policies and action, and climate finance. We’ve also added a methodology for assessing net zero targets. These briefings provides an overview of the development in climate action over the last year and illustrates the new CAT assessment of the countries we analyse, based on our updated method. Summary Code red: The new IPCC report on climate science has reinforced the absolute urgency of closing...

National ‘fair shares’ in reducing greenhouse gas emissions within the principled framework of international environmental law
Publication date 09 Sep 2021

International environmental law principles are used to assess indicators of fair share emissions reductions and narrow the range of what is considered a fair share for individual countries. Main Findings: This article tests fairness justifications offered in 168 nationally determined contributions (NDCs) to the 2015 Paris Agreement against the touchstone of principles of international environmental law. It finds that while many NDCs refer to elements and indicators that are backed by principles of international law in determining fair shares (sustainable development, special circumstances...

Global climate action from cities, regions and businesses - 2021
Publication date 23 Jun 2021

This report is the third and the latest edition of the series since 2018 that take stock of climate action by cities, regions and businesses and their global aggregate impact on greenhouse gas emissions. The 2021 edition focuses on the progress of non-state and subnational actors toward their emissions reduction targets. Main findings: In this report, we focus on subnational and non-state action in ten major emitting economies: Brazil, Canada, China, the European Union (EU-27) plus the United Kingdom (UK), India, Indonesia, Japan, Mexico, South Africa, and the United States (US). We find that...

Greenhouse gas emission scenarios in nine key non-G20 countries: An assessment of progress toward 2030 climate targets
Publication date 01 Jun 2021

This study published in the "Environmental Science & Policy" journal assesses if nine key non-G20 countries meet 2030 GHG targets with existing policies. Main Findings: This study compares greenhouse gas (GHG) emissions projections in 2030 under current policies and those under 2030 mitigation targets for nine key non-G20 countries, that collectively account for about 5 % of global total emissions today. These include the four largest non-G20 fossil CO 2 emitting Parties to the UN climate convention pre-Paris Agreement (Iran, Kazakhstan, Thailand and Ukraine) and one of the largest land-use...

Climate Action Tracker Global update: Climate Summit Momentum
Publication date 04 May 2021

In this briefing, the Climate Action Tracker (CAT) estimates global warming by 2100 to be at an all-time low of 2.4°C. Due to recent climate action announcements at President Biden’s Leaders Summit on Climate, together with those announced since September 2020, have improved the CAT’s global warming estimate by 0.2°C. This emissions gap needs to be closed with further NDC target updates this year and targets have yet to be supported by ambitious policies. Leaders’ Summit on Climate creates new momentum on climate action Climate action announcements at US President Biden’s Leaders Summit on...

A review of successful climate change mitigation policies in major emitting economies and the potential of global replication
Publication date 08 Jan 2021

This scientific article in ‘Renewable and Sustainable Energy Reviews’ looks at climate change mitigation policies in five major emitting economies: China, the European Union, India, Japan and the United States. It analyses their performance in terms of energy system and greenhouse gas emissions indicators. The review centres on the sectors of electricity generation, passenger vehicles, freight transport, forestry, industry, buildings, agriculture, and oil and gas production. The article further presents an explorative emissions scenario developed under the assumption that all countries will...

Decarbonisation Pathways for the EU Cement Sector
Publication date 17 Dec 2020

The EU cement sector has made progress to reduce emissions in the past three decades, yet there is a long way ahead for the carbon-intensive industry to decarbonise. In this study, potential decarbonisation pathways are developed and analysed based on different highly innovative technology routes. Based on the results, challenges and opportunities related to specific technologies are identified, informing policy recommendations for the near-, mid- and long term. Main findings: The characteristics of the traditional cement production process, with its major part of emissions originating from...

The Emissions Gap Report 2020
Publication date 09 Dec 2020

This is the eleventh edition of the United Nations Environment Programme (UNEP) Emissions Gap Report. It assesses the gap between estimated future global greenhouse gas (GHG) emissions if countries implement their climate mitigation pledges and the global emission levels from least-cost pathways that are aligned with achieving the temperature goals of the Paris Agreement. This difference between “where we are likely to be and where we need to be” has become known as the ‘emissions gap’. The report also examines two areas that are highly relevant for bridging the gap and which have become even...

Climate Action Tracker Global update: Paris Agreement Turning Point
Publication date 01 Dec 2020

The recent wave of net zero targets has put the Paris Agreement’s 1.5°C within striking distance. In this briefing, the Climate Action Tracker (CAT) has calculated that global warming by 2100 could be as low as 2.1°C as a result of all the net zero pledges announced as of November 2020. Included in our new modelling is the announcement by China in September 2020 that it intends to reach carbon neutrality before 2060, which reduces the CAT end of century warming estimate by 0.2 to 0.3°C alone. Assuming carbon neutrality in the USA by 2050, as proposed by President-Elect Biden, would reduce...

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