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Top marks for PIK: Senate of the Leibniz Association confirms excellence

03/24/2015 - The senate of the Leibniz Association - an organisation uniting more than 80 scientific institutions - issued a statement on Monday which brings the evaluation of PIK to a successful conclusion. The research results of the institute as a whole were rated “outstanding”. The rating is based on a review carried out by a team of top international researchers, which takes place only once every seven years. The reviewers judged that PIK has developed into a globally leading institute for climate science. As well as its achievements in research, the institute's important role in scientific policy advice was praised.

Atlantic Ocean overturning found to slow down already today

03/24/2015 - The Atlantic overturning is one of Earth’s most important heat transport systems, pumping warm water northwards and cold water southwards. Also known as the Gulf Stream system, it is responsible for the mild climate in northwestern Europe. Scientists now found evidence for a slowdown of the overturning – multiple lines of observation suggest that in recent decades, the current system has been weaker than ever before in the last century, or even in the last millennium. The gradual but accelerating melting of the Greenland ice-sheet, caused by man-made global warming, is a possible major contributor to the slowdown. Further weakening could impact marine ecosystems and sea level as well as weather systems in the US and Europe.

Unprecedented early warning of El Niño succeeds

03/19/2015 - The current El Niño event has been predicted by an international team of scientists more than one year ago – earlier than ever before. This breakthrough in forecasting the most important phenomenon of natural climate variability has been enabled by novel approach of complex networks analysis of atmospheric temperature data from the Pacific. Such forecast can help farmers in Brazil, Australia or India to prepare and for instance seed the right crops. In an unusual move, the scientists had published their unprecedented early warning early on – fully aware of the reputational risks.

Earth-Docs wanted: a new kind of research position

03/18/2015 - The Potsdam Institute for Climate Impact Research (PIK) is offering a new kind of research position for outstanding young scientists: they can become an Earth-Doc as part of an international research team working across research institutions and disciplines. The state-of-the-art programme has been launched by the Earth League, an international alliance of 17 leading scientists and institutions, co-founded by PIK. Applicants for the new position focusing on the role of social agents in Earth system dynamics should have a background in global sustainability and modelling.

Global warming brings more snow to Antarctica

03/17/2015 - Although it sounds paradoxical, rising temperatures might result in more snowfall in Antarctica. Each degree of regional warming could increase snowfall on the ice continent by about 5 percent, an international team of scientists led by the Potsdam Institute for Climate Impact Research now quantified. Published in the journal Nature Climate Change, their work builds on high-quality ice-core data and fundamental laws of physics captured in global and regional climate model simulations. The results provide a missing link for future projections of Antarctica’s critical contribution to sea-level rise. However, the increase in snowfall will not save Antarctica from losing ice, since a lot of the added ice is transported out into the ocean by its own weight.

Summer storm weakening leads to more persistent heat extremes

03/12/2015 - Storm activity in large parts of the US, Europe and Russia significantly calmed down during summers over the past decades, but this is no good news. The weakening of strong winds associated with the jetstream and weather systems prolongs and hence intensifies heat extremes like the one in Russia in 2010 which caused devastating crop failures and wildfires. This is shown in a study to be published in the renowned journal Science by a team of researchers from the Potsdam Institute for Climate Impact Research. They link the findings to changes in the Arctic caused by man-made global warming.

Climate change impacts across sectors: frontier science workshop

03/06/2015 – A global community of scientists that aim at bringing research on climate change impacts to a new level met in Austria this week. More than 130 institutes are now member of the unique Inter-Sectoral Impact Model Intercomparison Project (ISI-MIP). The participants discussed insights from their thorough model evaluation, including hindcast. Comparing the model output with real processes in history provides crucial information about strengths and weaknesses of models, and how to make use of them. Moreover, pathways to a longer-term coordinated impact assessment effort have been discussed.

New forecasting method: Predicting extreme floods in the Andes mountains

10/14/2014 - Predicting floods following extreme rainfall in the central Andes is enabled by a new method. Climate change has made these events more frequent and more severe in recent decades. Now complex networks analysis of satellite weather data makes it possible to produce a robust warning system for the first time, a study to be published in the journal Nature Communications shows. This might allow for improved disaster preparedness. As the complex systems technique builds upon a mathematical comparison that can be utilised for any time series data, the approach could be applied to extreme events in all sorts of complex systems.

US Government Accountability Office seeks exchange with climate scientists

02/23/2015 - The Government Accountability Office of the US Congress (GAO) considers climate change impacts such as floodings or droughts to be a financial risk. To study the German perspective on this issue, it sent a high-ranking delegation to the Potsdam Institute for Climate Impact Research (PIK) as well as to some other institutions in Europe. This will result in a report on how to improve climate services in the US.

IPCC scientist appointed professor

02/10/2015 - The head of the Technical Support Unit of the IPCC’s Working Group on climate change mitigation, hosted by the Potsdam Institute for Climate Impact Research (PIK), has now been appointed as Professor for Science-Policy and Sustainable Development at the Hertie School of Governance in Berlin. The scientist, Jan Minx, also serves as head of the new working group “Applied Sustainability Science” at the Mercator Research Institute on Global Commons and Climate Change (MCC), and he remains a guest scientist at PIK. Both the Working Group on mitigation of the Intergovernmental Panel on Climate Change (IPCC) and MCC are led by PIK’s chief-economist Ottmar Edenhofer.

The Global Calculator: new tool for climate information launched

02/06/2015 - Informing businesses, governments and non-governmental organizations about options for cutting CO2 emissions and the trade-offs for energy and land is the ambition of a new web platform called the Global Calculator. An international team led by the United Kingdom’s Department of Energy and Climate Change and co-funded by the European Union’s Climate-KIC launched the tool last week. Scientists that contributed to the community effort came from institutions such as the London School of Economics, the International Energy Agency, the Chinese Energy Research Institute, the Potsdam Institute for Climate Impact Research (PIK), and its spinoff Climate Media Factory (CMF).

„Two Big Bangs“: PIK Research Days

02/04/2015 - Current and future research projects have been debated at the Potsdam Institute for Climate Impact Research last week – while also looking back at outstanding events of last year. The Research Days each year are a meeting of virtually all members of the institute, two days packed with lectures and discussions. This time topics ranged from the next world climate summit in Paris at the end of this year, to advancing computer simulation models of the climate system as well as the energy sector, something to achieve until the end of this decade.

Clean technology can partially make up for weak CO2 pricing

02/02/2015 - Clean technology support can to some extent make up for weak CO2 pricing and hence help keep the two degrees target within reach, a new study shows. Even if the world climate summit in Paris later this year is successful in striking a climate deal, it might not bring about sharp greenhouse-gas cuts in the near-term. However, emission targets could be strengthened by complementary policies, such as support for renewables, a ban on new coal-fired power plants, and an initially modest global minimum price on CO2. If such a policy package – each component of which has already been enacted in some countries – were to be put into practice globally now, this could also pave the way for a clean economy with faster long-term CO2 reductions after 2030.

Schellnhuber speaks at World Economic Forum in Davos

01/23/2015 - The World Economic Forum in Davos, assembling hundreds of government and business leaders, invited the director of the Potsdam Institute for Climate Impact Research (PIK), Hans Joachim Schellnhuber, to speak. He joined a panel on climate risks with the Secretary-General of the Organization for Security and Co-operation in Europe (OSCE), the President of the financial services and rating company Standard & Poor's , and the President of the Rockefeller Foundation. The audience included scientists like Naomi Oreskes of Harvard University and policy-makers such as Christiana Figueres of the UNFCCC.

World Economic Forum in Davos

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National academy acatech appoints Ottmar Edenhofer

01/16/2015 - In recognition of his outstanding scientific achievements, climate economist Ottmar Edenhofer has been elected a member of the German National Academy for Science and Engineering, acatech. Edenhofer is deputy director of the Potsdam Institute for Climate Impact Research, Director of the Mercator Research Institute on Global Commons and Climate Change (MCC), and Professor at Technische Universität Berlin. He already chairs the Energy Platform of the European Council of Academies of Applied Sciences, Technologies and Engineering (Euro-CASE), of which acatech is a part. In the Intergovernmental Panel on Climate Change, Edenhofer led the working group on mitigation which published its highly influential Fifth Assessment Report last year.

Four of nine planetary boundaries now crossed

01/16/2015 - Four of nine planetary boundaries have now been crossed as a result of human activity, says an international team of 18 researchers in the journal Science. The four are: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles. The scientists say that two of these, climate change and biosphere integrity, are “core boundaries” – significantly altering either of these would “drive the Earth System into a new state”. The team will present their findings in seven seminars at the World Economic Forum in Davos (21-25 January).

Honours for young PIK scientists

12/31/2014 - Jonathan Donges of the Potsdam Institute for Climate Impact Research received the Wladimir Peter Köppen Prize for his achievements in modelling the climate system. The award of the Cluster of Excellence CliSAP (Integrated Climate System Analysis and Prediction) in Hamburg honours outstanding doctoral theses of young scientists under the age of thirty years. The jury described Donges dissertation, submitted to Berlin’s Humboldt University, as an innovative and outstanding contribution to current climate research.

Beyond Lima: Looking ahead to Paris 2015

12/30/2014 - With the climate conference in Lima closed again after prolonged and tough negotiations, and the year 2014 closing on course to be one of the hottest on record, scientists of the Potsdam Institute for Climate Impact Research (PIK) are looking ahead to next year’s summits on the road to COP21 in Paris. “2015 will set the stage for the living conditions of our grandchildren – and their grandchildren, too,” news agency Agence France Press, Süddeutsche Zeitung and other media quoted Hans Joachim Schellnhuber, PIK's director.

Forests around the world affected by climate change

12/19/2014 - Around the globe, forests are found to be undergoing strong changes due to human influence already today. Degradation of woods due to man-made climate change cannot be ruled out for the future, a Special Feature to be published next week in the Journal of Ecology, led by a team of scientists of the Potsdam Institute for Climate Impact Research (PIK), now shows. To understand and improve the resilience of forests, a combination of approaches from small-scale field experiments to large-scale computer simulations can help, according to the studies. Taking a risk perspective, the scientists caution that global warming puts additional pressure on some of the most valuable ecosystems on Earth.

Ice scientist appointed professor in Potsdam

12/17/2014 - At 29, Ricarda Winkelmann has already accomplished what others may only dream of: She joined a scientific expedition to Antarctica, and is now set to become a junior professor for Climate Systems Analysis at the University of Potsdam. "Ms. Winkelmann is known for her excellent research in a highly relevant field," said Robert Seckler, Vice President for Research and Junior Academics of the university. "This joint appointment with the Potsdam Institute for Climate Impact Research (PIK) is s an excellent way of promoting young academics." During a ceremony, the physicist received her official appointment letter from the Science Minister of the German State of Brandenburg, Sabine Kunst, and also took her oath of service.

Chair of the Green parliamentary group visits PIK

12/16/2014 – The chair of the Green parliamentary group in the German parliament, Anton Hofreiter, was briefed on the latest research results by leading climate scientists. During his visit at the Potsdam Institute for Climate Impact Research he discussed topics like the energy transition in Germany, the European Emissions Trading System, and carbon pricing with chief-economist Ottmar Edenhofer and with the head of the PIK research group Energy Strategies for Europe and Germany, Brigitte Knopf. Hofreiter also met with PIK director Hans Joachim Schellnhuber to talk about the scientific background of the two degrees limit for global warming, tipping elements in the climate system, and the increasing risks of unabated global warming.

Currently proposed climate policy pledges are an important step forward but fall short of 2 degrees Celsius

12/15/2014 - Pledges to reduce emissions in China, Europe and the US provide an important step forward for climate change action, but a more comprehensive effort is needed to stabilize the climate below critical thresholds. Climate finance can cover investment gaps and alleviate distributional tensions, a new study shows. The study looks into several key negotiation issues on the road from the climate summit in Lima to the one in Paris 2015.

How humans shape the world: conclusion of the Anthropocene Project

12/15/2014 - The Anthropocene project at the “Haus der Kulturen der Welt” in Berlin came to a conclusion after two years with a comprehensive campus programme. "Our notion of nature is out of date. Humanity forms nature" – this was the core premise of the underlying Anthropocene thesis, that has been discussed in events, exhibitions and discussions between natural sciences, culture, politics and everyday life since 2013. Numerous eminent artists, architects and researchers of the humanities as well as the natural sciences contributed to the project and the final campus sessions. Wolfgang Lucht of the Potsdam Institute for Climate Impact Research was part of the project from the very beginning.

Crown Princess of Norway meets with Schellnhuber

12/07/2014 - The Crown Princess of Norway, Mette-Marit, spoke at a roundtable discussion on climate change with distinguished researchers and selected business leaders. To share insights, she met with Hans Joachim Schellnhuber, director of the Potsdam Institute for Climate Impact Research (PIK) and the other participants on this occasion. The event was hosted by Statkraft, the renewable energy provider of Norway.

Exploring image politics of climate change

12/08/2014 - Scientists as well as professionals in politics, education, media or fine arts have long been struggling to depict climate change, a highly abstract concept by definition. In their recently published book "Image Politics of Climate Change", PIK's Thomas Nocke and Birgit Schneider of the University of Potsdam examine a variety of images picturing global warming sparked by climate change research. They explore how these graphics have not only increased knowledge about the subject, but have begun to influence popular awareness. These visualizations vary significantly depending on their purpose, complexity and style - ranging from colorful scientific diagrams and model visualizations to photographs and paintings of extreme weather events or polar bears.

UN Climate Conference COP20: The challenges of climate change and poverty

12/05/2014 - Delegates from more than 190 nations are gathering in Peru these days for the UN Climate Conference COP20. Among the conference participants are also scientists of the Potsdam Institute for Climate Impact Research, namely Chief-Economist Ottmar Edenhofer who is also a leading scientist in the Intergovernmental Panel on Climate Change (IPCC). Already in November, he spoke at the joint briefing by the Federal Foreign Office and the German Climate Consortium. Researchers of PIK, with their expertise in earth system changes and in solutions for the climate challenge, were frequently interviewed in the run-up to the summit.

Ethics and economics: study on values in simulations

12/05/2014 - Computer simulations of the impacts of global trade policy, for example, generally contain ethical value assumptions. In order to make these assumptions more transparent, and to enhance our understanding of possible trade-offs, scientists have developed a novel methodological approach and applied it to agro-economic modelling of global water scarcity. Their newly released study, the result of an unusual collaboration between economists, scientists and philosophers, contends that the incorporation of value assumptions in scientific scenarios can improve the usability of those scenarios for decision-makers in politics and business.

“Climate change: the necessary, the possible and the desirable”

12/01/2014 - In time with this year’s UN climate conference in Lima, a group of leading scientists, including Earth League members– a global alliance of prominent climate scientists –laid out in a joint paper the key elements of the ‘the necessary, the possible and the desirable’ in relation to climate change. Authors include Johan Rockström of the Stockholm Resilience Centre, Nick Stern of the London School of Economics, Peter Schlosser of Columbia University in New York City, and two scientists of the Potsdam Institute for Climate Impact Research: Wolfgang Lucht, co-chair of research domain Earth System Analysis, and director Hans Joachim Schellnhuber.

UN Climate Change Conference COP20 in Lima

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