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Browse publications
The Climate Change Performance Index 2022
Publication date 09 Nov 2021

Developed by Germanwatch , NewClimate Institute and CAN , the CCPI analyses and compares climate change mitigation efforts across 60 countries (plus EU as a whole) with the highest emissions. Together these countries account for 90 percent of global emissions. The index aims to enhance transparency in international climate politics and enable comparison of mitigation efforts and progress made by individual countries. Race Towards Climate Neutrality Is Underway: CCPI’s top countries lead the way Scandinavian countries, together with the United Kingdom and Morocco, lead the ‘race to zero’...

A seismograph for measuring the transformation to net-zero greenhouse gas emissions – Discussion Paper
Publication date 03 Nov 2021

A “transformation seismograph” can give an early warning signal with small perturbations at the beginning, later some elements of the system start shaking, later strong vibrations occur in all areas of the system until tipping or transformation point (point of no return) is reached. In this discussion paper we explores this concept to detect and measure the transformation to net-zero greenhouse gas emissions. Abstract: This discussion paper sketches the idea of a “transformation seismograph” to detect the signs and measure the speed and magnitude of transformation to net-zero greenhouse gas...

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...

Climate Action Tracker: Exploring new electric vehicle roadmaps for China in a post-COVID-19 era
Publication date 05 Oct 2021

In this report, the Climate Action Tracker (CAT) explores several sets of scenarios for the evolution of the passenger vehicle stock in China, in order to inform on emission reduction and electricity demand implications. Summary: China is currently the global leader in battery electric vehicle (BEV) sales annually, a position it has held since 2015 when it surpassed the US. The one positive policy priority in China’s COVID-19 recovery focused on transitioning the transport sector towards development of public transport systems and electrified transport. New energy vehicles (NEVs), which...

Working together to achieve the Paris climate goals and sustainable development
Publication date 20 Sep 2021

This study shows how transformative change can bring about sustainable development, prevent climate change from spiralling out of control and address the unavoidable consequences of climate change in a development-friendly manner. Main findings: In view of the multiple crises facing the world, unprecedented efforts are required to achieve resilient, climate-compatible and sustainable development on a global scale. Avoiding unmanageable climate change and managing its unavoidable impacts requires ambitious and coherent action towards the objectives of the Paris Agreement. In this context, the...

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...

NDC Design
Publication date 08 Jul 2021

As part of the Paris Agreement, countries are mandated to update and enhance their Nationally Determined Contributions (NDCs) every five years — increasing their ambition with every cycle. The first round of NDCs were submitted starting in 2015 as intended nationally determined contributions and countries have submitted or are finalizing their updates for the new cycle in 2020/2021. The purpose of this report was to develop a methodology to systematically assess the design of NDCs and to apply it to 20 NDCs. Main findings: While there are several tools that analyze NDCs, they are comprehensive...

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...

Implications of Paris Agreement on the national emissions reduction efforts
Publication date 03 May 2021

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 spill-over effect of domestic action and provides inputs to the discussion around the long-term mitigation goal of the European Union. Key Findings: The adoption of the Paris Agreement with the long-term goal of reducing temperature increase...

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...

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