Press Release

Less trade-offs, more synergies: New pathway to mitigate climate change and boost progress on UN Sustainable Development Goals

08/02/2021 - A world that combats climate change while simultaneously improving on all 17 Sustainable Development Goals (SDGs) is possible, a new study finds. Scientists from the Potsdam Institute for Climate Impact Research (PIK) and the German Development Institute have developed a new integrated strategy that combines ambitious climate action with dedicated policies for development, food and energy access, global and national equity, and environmental sustainability. It sheds new light on bottlenecks, but also synergies for boosting progress towards climate and sustainable development targets.
Read More
Press Release

New economic model shows how our social networks could contribute to generating phenomena like inequality and business cycles

07/05/2021 - Many standard economic models assume people make perfectly rational, individual decisions. But new research suggests economic phenomena like inequality and business cycles are better explained by models which recognize that people’s decisions are affected by the decisions and the behaviors of people around them.
Read More
News

Smart transfer rules can strengthen EU climate policy

06/25/2021 - Brussels sets ambitious targets with the European Green Deal, so how can we ensure that all member states go along with them? An economic study on decision-making in groups of states gives us clues.
Read More
Press Release

Limiting climate risks for finance: Central banks and science publish scenarios

06/07/2021 - To improve climate related risk management in the financial sector and facilitate a smooth transition toward a sustainable economy, over 90 central banks and financial market supervisors organized in the Network for Greening the Financial System joined forces with science. Together, researchers and financial experts now published an updated set of scenarios of an orderly transition, delayed transition, and climate policy failure. They show how early greenhouse gas emissions reductions can minimize both physical and financial risk. In contrast, delayed action or no action would inevitably drive up costs in the medium to long term. The analysis provides sectoral and regional detail to help financial institutions adapt their investment strategies.
Read More
Press Release

Few realistic scenarios left to limit global warming to 1.5°C

05/14/2021 - Of the over 400 climate scenarios assessed in the 1.5°C report by the Intergovernmental Panel on Climate Change (IPCC), only around 50 scenarios avoid significantly overshooting 1.5°C. Of those only around 20 make realistic assumptions on mitigation options, for instance the rate and scale of carbon removal from the atmosphere or extent of tree planting, a new study shows. All 20 scenarios need to pull at least one mitigation lever at "challenging" rather than "reasonable" levels, according to the analysis. Hence the world faces a high degree of risk of overstepping the 1.5°C limit. The realistic window for meeting the 1.5°C target is very rapidly closing.
Read More
Press Release

Hydrogen instead of electrification? Potentials and risks for climate targets

05/06/2021 - Hydrogen-based fuels should primarily be used in sectors such as aviation or industrial processes that cannot be electrified, finds a team of researchers. Producing these fuels is too inefficient, costly and their availability too uncertain, to broadly replace fossil fuels for instance in cars or heating houses. For most sectors, directly using electricity for instance in battery electric cars or heat pumps makes more economic sense. Universally relying on hydrogen-based fuels instead and keeping combustion technologies threatens to lock in a further fossil fuel dependency and greenhouse gas emissions.
Read More

RD2 Beitrag über die rolle einer demokratischen Konfliktkultur auf Berliner Energietage

06/04/2021 - Populistische Parteien und Akteure haben den Kampf gegen die Energiewende als ein Thema für sich entdeckt und versuchen diese als "Elitenprojekt" zu diffamieren. In diesem Session, moderiert durch RD2 Wissenschaftler Seraja Bock, sprechen Expert*innen über diese populistischen Akteuren, wie sie auf das Prozess Einfluss nehmen und was eine demokratische Konfliktkultur dem entgegen setzen könnte.
Read More

Statement to Environmental Committee of the Berlin House of Representatives by Fritz Reusswig

29/04/2021 - Fritz Reusswig was invited to the Berlin House of Representatives as an expert to comment the amendment to the Berlin Energy Law (EWG Bln), issued by the red-green-red Berlin government. With this law, the Berlin Senate wants to align its climate politics to the Paris Agreement goals.
Read More
Press Release

The new EU climate target will increase carbon prices and could phase out coal power in Europe as early as 2030

04/27/2021 - Tightening the EU emissions trading system (EU ETS) in line with the EU Green Deal would dramatically speed up the decarbonization of Europe's power sector – and likely cause a demise of the coal industry. In a new study a team of researchers from Potsdam, Germany has quantified the substantial shifts Europe's electricity system is about to undergo when the newly decided EU climate target gets implemented. Higher carbon prices, the authors show, are not only an inevitable step to cut emissions – they will also lead much faster to an inexpensive electricity system powered by renewable energies.
Read More

Data-based analysis of climate decisions

How do we – individually and as a society – respond to a changing climatic environment and extreme weather events?
Read More
Press Release

Solar panels are contagious - but in a good way: study

04/21/2021 - The number of solar panels within shortest distance from a house is the most important factor in determining the likelihood of that house having a solar panel, when compared with a host of socio-economic and demographic variables. This is shown in a new study by scientists using satellite and census data of the city of Fresno in the US, and employing machine learning. Although it is known that peer effects are relevant for sustainable energy choices, very high-resolution data combined with artificial intelligence techniques were necessary to single out the paramount importance of proximity. The finding is relevant for policies that aim at a broad deployment of solar panels in order to replace unsustainable fossil fueled energy generation.
Read More
Press Release

Erratic weather slows down the economy

02/08/2021 - If temperature varies strongly from day to day, the economy grows less. Through these seemingly small variations climate change may have strong effects on economic growth. This shows data analyzed by researchers from the Potsdam Institute for Climate Impact Research (PIK), Columbia University and the Mercator Research Institute on Global Commons and Climate Change (MCC). In a new study in Nature Climate Change, they juxtapose observed daily temperature changes with economic data from more than 1,500 regions worldwide over 40 years – with startling results.
Read More
Press Release

Coal and COVID-19: How the pandemic is accelerating the end of fossil power generation

02/08/2021 - COVID-19 has not only caused a temporary drop in global CO2 emissions, it has also reduced the share of power generated by burning coal – a trend that could in fact outlast the pandemic. This is the key result of a new study by a team of economists based in Potsdam and Berlin that looked at COVID-19's impact on the energy system and demand for electricity. Their findings show that the pandemic, while putting a terrible toll on people’s lives and the economy, has also opened a window of opportunity to make this current trend of decreasing coal use irreversible: Supported by the right climate policy measures, power sector emissions could decline more rapidly than previously thought.
Read More
News

New hope for the climate: Edenhofer & Rockström on Biden US Presidency

01/26/2021 - The Potsdam Institute for Climate Impact Research (PIK) puts hope in the start of Joe Biden's presidency after climate topics have been rather neglected for the last four years of from US side. PIK Director Ottmar Edenhofer explores the concept of carbon pricing as a possible tool for the new US administration and Johan Rockström, Director of PIK along with Ottmar Edenhofer, signed a global ambition letter together with known CEO'S - from Amazon to Ford Motor Company - and world climate leaders, calling on US President Joe Biden to be the climate leader that science demands.
Read More
News

PIK STATEMENT on the EU climate target and on the Paris Agreement's 5th anniversary

12/11/2020 - Today, the European Council adopted the target of reducing greenhouse gas emissions by at least 55% below 1990 levels by 2030. On 12 December, the historic Paris climate agreement has its 5th anniversary of being adopted by representatives of more than 196 countries plus the EU at the UN climate summit COP21.
Read More
Press Release

CO2 pricing and financial transfers: small changes can have a huge effect on climate equity

12/09/2020 - Global greenhouse-gas emission reductions could be achieved in a fair and thrifty way by surprisingly small variations of well-known policies. This is shown by a team of economists in a quantitative study now published in Nature. Differentiated CO2 prices in different countries combined with moderate financial transfers from advanced to developing countries would do the job. These changes would be most efficient in achieving fair burden sharing and at the same time keep overall costs in check, the researchers find. This could solve the epic trilemma to unite cost-efficiency, national sovereignty and fair effort-sharing.
Read More
News

New study: CO2 price of 100 euros could find acceptance - if the revenue is refunded

12/07/2020 - In January a CO2 price for the traffic and heating sector will be introduced in Germany for the first time. Initially it will amount to 25 euros per ton of CO2, but will rise to 55 euros by 2025. But in order to meet climate targets by 2030 significantly higher prices are necessary.
Read More
Statement

US Presidentials results: "Unprecedented opportunity to lock in climate stabilization"

11/08/2020 - According to media reports Joe Biden and Kamala Harris have defeated Donald Trump in the US Presidential elections. This can have substantial relevance for international climate pathways. On this issue, statements by the two scientific Directors of the Potsdam Institute for Climate Impact Research, economist Ottmar Edenhofer and Earth system scientist Johan Rockström.
Read More
Event

"System Transformation": #RaceToZero UNFCCC pre-COP26 event

11/04/2020 - The #RaceToZero dialogues on how to achieve net zero greenhouse gas emissions kick off on Monday, 9th of November, organized by UNFCCC and COP26 world climate summit team. The Club of Rome and Potsdam Institute for Climate Impact Research are joining forces to host the opening session on “Systems Transformation” - for a new resilience agenda for people, planet, prosperity. With presentations by Johan Rockström (Director of PIK) and Sandrine Dixson-Declève (Co-President of The Club of Rome) as well as a high-level panel discussion, this online event introduces all participants to ten days filled with keynotes, showcases and High-Level Champions all combined for a systemic transformation to reach the climate stabilization goals of the Paris Agreement.
Read More
News

"Climate has reached a global crisis point": PIK Director Joins TED Countdown

10/15/2020 - “We Can Change Climate Change” – this is the slogan of TED Countdown, a year-long initiative by scientists, artists, government officials and activists to collectively develop concrete ideas for a cleaner future. PIK Director Johan Rockström contributed with an engaging and energizing video statement.
Read More
Press Release

Biggest CO2 drop: Real-time data shows Covid-19’s massive impact on global emissions

10/14/2020 - While the ongoing Corona pandemic continues to threaten millions of lives around the world, the first half of 2020 saw an unprecedented decline in CO2 emissions – larger than during the financial crisis of 2008, the oil crisis of 1979, or even World War II. An international team of researchers has found that in the first six months of this year, 8.8 percent less carbon dioxide were emitted than in the same period in 2019 – a total decrease of 1551 million tonnes. The groundbreaking study not only offers a much more precise look at COVID-19’s impact on global energy consumption than previous analyses. It also suggests what fundamental steps could be taken to stabilize the global climate in the aftermath of the pandemic.
Read More
Press Release

Edenhofer awarded with most prestigious environmental prize

09/02/2020 - This year’s "Umweltpreis" – the most prestigious environmental prize in Germany – goes to Ottmar Edenhofer. Deutsche Bundesstiftung Umwelt honours the Director of the Potsdam Institute for Climate Impact Research (PIK, member of Leibniz Association), and of the Mercator Research Institute for Global Commons and Climate Change (MCC), for his groundbreaking work namely in the field of carbon pricing. The award will be presented to Edenhofer by the German head of state, President Frank-Walter Steinmeier, on 25 October in Hanover.
Read More
Press Release

Heating our climate damages our economies – study reveals greater costs than expected

08/19/2020 - Rising temperatures due to our greenhouse gas emissions can cause greater damages to our economies than previous research suggested, a new study shows. Scientists from the Potsdam Institute for Climate Impact Research (PIK) and the Mercator Research Institute for Global Commons and Climate Change (MCC) took a closer look at what climate change does to regions at the sub-national level, such as US states, Chinese provinces or French départements, based on a first-of-its-kind dataset by MCC. If CO2 emissions from burning fossil fuels are not reduced rapidly, a global warming of 4°C until 2100 can make that regions lose almost 10% of economic output on average and more than 20% in the tropics.
Read More
Press Release

Climate Stabilization: Lessons from the Corona Crisis

08/17/2020 - The dynamics of the current COVID-19 pandemic could offer valuable insights for the efforts to mitigate climate change. Highlighting the parallels between the global health and the climate emergency, a team of researchers from the Potsdam Institute for Climate Impact Research (PIK) has analyzed what policy makers and citizens can learn from the corona outbreak and how to apply it to the global effort of reducing CO2 emissions. Their proposal: A Climate Corona Contract that unites the younger and the older generations.
Read More
News

Engage with the altruists, ignore the free-riders: New study explores communication dynamics in climate negotiations

07/16/2020 - Communication is the key to overcoming the social dilemma of mitigating climate change, which requires investments from various actors towards a common goal. According to a new study published in Proceedings of the National Academy of Sciences (PNAS) and co-authored by Jürgen Kurths and Hans Joachim Schellnhuber from the Potsdam Institute for Climate Impact Research, communicating sentiment and outlook significantly improves group interactions in climate change mitigation processes.
Read More
Press Release

An Economic Case for the UN Climate Targets: Early and strong climate action pays off

07/13/2020 - Climate action is not cheap – but climate damages aren’t, either. So what level of climate action is best, economically speaking? This question has puzzled economists for decades, and in particular since the 2018 Nobel Prize in Economics went to William Nordhaus, who found 3.5 degrees of warming by 2100 might be an economically desirable outcome. An international team of scientists led by the Potsdam Institute has now updated the computer simulation model used to come to this conclusion with latest data and insights from both climate science and economics. They found that limiting global warming to below 2 degrees strikes an economically optimal balance between future climate damages and today’s climate mitigation costs. This would require a price of CO2 of more than 100 US Dollar per ton.
Read More
News

Science Platform Climate Protection: The German government's Corona economic stimulus package needs a climate impact assessment

07/09/2020 - On July 9, 2020, the Steering Committee of the German Science Platform Climate Protection (WPKS) presented and discussed with State Secretaries Jochen Flasbarth (BMU) and Wolf-Dieter Lukas (BMBF) a statement on climate policy requirements for the design of economic stimulus packages in the Corona crisis. Eight renowned scientists from various disciplines coordinate the tasks of the Science Platform Climate Protection in the Steering Committee. In doing so, they support the Federal Government in the implementation and further development of the Climate Protection Plan 2050 and thus contribute to achieving national, European and international climate protection goals.
Read More

Shaping the energy transition together: Kopernikus project Ariadne launched

07/03/2020 - From our energy supply to the industry and the Paris climate targets, from individual sectors to the big picture: a network of leading research institutions is now starting an unparalleled research process focused on shaping the German energy transition. The Ariadne project aims at improving our understanding of the impact of different policy instruments in order to develop sound strategies for change. From the very beginning, a comprehensive dialogue between decision-makers from politics, business, and civil society will be a core part of the project.
Read More
Press Release

Direct CO2 pricing gives room for additional voluntary emissions reductions

06/30/2020- Most climate economist agree that it makes sense to put a price tag on the emission of the most important greenhouse gas carbon dioxide, CO2. The discussion primarily revolves around whether it would be better to achieve this through a tax or emissions trading. Arguments include the administrative effort involved, the signal effect for investors, and the political enforceability. A new study based on a scientifically controlled experiment now sheds light on another aspect that has barely been researched so far: the incentive effect of both options on actors who want to act morally beyond their economic interests. The study was conducted by the economists Axel Ockenfels, Peter Werner and Ottmar Edenhofer, and has now been published in the renowned journal Nature Sustainability.
Read More