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"An alliance is emerging": climate summit COP22 concludes

11/18/2016 - The UN climate summit COP22 in Morocco sent a signal of renewed confidence in the Paris climate agreement - despite the widespread concern that the USA under President Donald Trump might drop out of international climate policy. Leading scientists of the Potsdam Institute for Climate Impact research most actively participated in the international meeting which concluded today. Countries including oil-exporting Saudia Arabia expressed the wish to switch from fossil fuels to renewable energy. Almost 200 nations at two-week talks agreed a statement that the fight against climate change was an "urgent duty" and "irreversible".

The Potsdam Institute at COP22 in Marrakech

11/09/2016 - Researchers from the Potsdam Institute for Climate Impact Research (PIK) are attending the current UN climate summit COP22 in Marrakesch from November 7 to 18. Amongst other events, PIK Director Hans Joachim Schellnhuber will speak at a side-event of the German Advisory Council on Global Change on the science-policy dialogue to reach Paris targets. PIK chief economist Ottmar Edenhofer will discuss the potential of the Paris Agreement in a side event with colleagues from Arizona State University, Harvard Kennedy School and others.

Edenhofer advises Volkswagen on sustainability issues

09/30/2016 - Volkswagen appointed a sustainability council - one of the members is Ottmar Edenhofer, chief economist of the Potsdam Institute for Climate Impact Research. The new body will meet for the first time at the end of October in Berlin. VW is selling more cars than any other corporation worldwide. The company is currently under pressure because of manipulations of diesel engines' emission measurements.

Edenhofer ranked amongst Germany’s top economists

09/06/2016 - In a ranking of Germany’s “most influential economists”, Ottmar Edenhofer, chief economist of the Potsdam Institute for Climate Impact Research, was placed amongst the top researchers in the field. The grouping published by the renowned daily ‘Frankfurter Allgemeine Zeitung’ (FAZ) is based on data on the scientific, political and media impact of the individual researchers. Edenhofer, who also directs the Mercator Research Institute on Global Commons and Climate Change and is a Professor at Technische Universität Berlin, is the only economist with a focus on climate who scored this high in the ranking.

German industry and climate experts: G20 should push CO2 pricing

09/02/2016 - An unusual alliance of business, science and an environmental organization is urging the major economies meeting as G20 this weekend in Hanghzou, China, to push CO2 pricing. The Federation of German Industries (BDI), Germanwatch and the Mercator Research Institute on Global Commons and Climate Change (MCC) led by Ottmar Edenhofer - chief economist of the Potsdam Institute for Climate Impact Research - published a joint proposal in the german weekly ‘Die Zeit’. Pricing greenhouse-gas emissions from fossil fuels is key to achieve the climate stabilization goals set forth in the Paris Agreement, the authors argue. It should both set incentives for CO2 reductions and create more predictability for planning, the authors argue. In the same time, the instrument could raise much-needed revenues for infrastructure investments. The initiative comes ahead of the announcement of the agenda of Germany’s G20 Presidency to commence in December.

The Great Investment Turnaround: how to finance a sustainable world economy

07/20/2016 - Banks and insurers can play a crucial part in stabilizing the climate, while at the same time safeguarding their clients’ assets. Leading representatives of finance and climate research will discuss the best strategies for a turnaround in investing this Thursday in Berlin. The event is hosted by the Swiss global bank UBS, the French multinational insurance firm AXA, CDP, the European innovation initiative Climate-KIC, Humboldt-Universität zu Berlin and the Potsdam Institute for Climate Impact Research (PIK). Divestment – the diversion of capital from fossil fuel industries to green innovation and sustainable businesses – is a new approach to reducing greenhouse-gas emissions, which could turn out to be a global “game changer”.

PIK ranked among top climate think tanks worldwide

06/27/2016 - The Potsdam Institute for Climate Impact Research (PIK) belongs to the best climate think tanks worldwide, the new ICCG Climate Think Tank Ranking shows. The assessment by the International Center for Climate Governance analyzed 240 cutting-edge institutions working in the field of climate change economics and policy. Based on a solid quantitative methodology and analytical data, the ICCG lists non-university affiliated think tanks in an absolute and a standardized ranking - the latter based on an institute's output in relation to the number of its researchers. In both competitions, PIK ranks fourth best global climate think tank.

“The world in 2050”: Mercator Climate Lecture with economists Sachs and Edenhofer

06/01/2016 – More than 1000 people attended the 2016 Mercator Climate Lecture "The World in 2050 - Towards Sustainable Development and Deep Decarbonization" in Berlin on Wednesday. Top US-economist Jeffrey D. Sachs, Director of the Earth Institute at Columbia University and Special Advisor on Sustainable Development for the United Nations, gave a much-applauded keynote. This was followed by an intense discussion with Ottmar Edenhofer, Chief Economist at the Potsdam Institute for Climate Impact Research (PIK) and Professor at Technische Universität (TU) Berlin. The lecture is a joint project by Stiftung Mercator, Technische Universität Berlin, and PIK. The spectators in the Auditorium Maximum - in fact a mix of students and experts from business, politics, NGO and science – was joined by a worldwide audience following the event via livestream.

"Below 2 degrees": Edenhofer in book on Paris Agreement

04/18/2016 - National minimum prices for CO2 emissions combined with international climate finance could be a way to put the Paris Agreement into practice. This is a key message from Ottmar Edenhofer, chief economist at the Potsdam Institute for Climate Impact Research and Director of the Mercator Institute for Global Commons and Climate Change, in his contribution to the book "Below two degrees". The Anthology is assembling quite a number of prominent voices: from the President of the German Environment Agency to Members of Parliament, from NGO heads to the Director of the Helmholtz Centre for Ocean Research Kiel. This week, the new publication will be presented by the German Federal Environmental Foundation along with the Federal Environment Ministry's Secretary of State Jochen Flasbarth, who's also a co-author.

Leibniz President Kleiner visits PIK

01/27/2016 - The president of Leibniz Association, Matthias Kleiner, visited the Potsdam Institute for Climate Impact Research (PIK) for an exchange on current projects and developments. Among other topics the focus of the meetings was also on research strategies. Kleiner met with PIK Director Hans Joachim Schellnhuber as well as with the Chairs of PIK’s four research domains.

New top German IPCC scientist visits PIK

2016/01/25 - The newly elected top German scientist in the Intergovernmental Panel on Climate Change (IPCC), Hans-Otto Pörtner, visited the Potsdam Institute (PIK) this week for an intense exchange about challenges of the next climate science assessment report. It will be the sixth of its kind and due in 2022. Pörtner, a senior biologist at the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, heads the part of the report assessing climate change impacts. This is a core research issue of PIK. What is more, for half a decade PIK’s chief economist was head of the IPCC’s working group on mitigation.

Historic climate agreement: “The spirits of Paris have defeated the ghosts of Copenhagen"

12/14/2015 - 195 states worldwide adopted a breakthrough climate agreement at the UN climate summit in Paris, COP21. Leading scientists from the Potsdam Institute for Climate Impact Research actively participated in the historic meeting that put the world on the path to limiting global warming to well below 2 degrees Celsius and bring down greenhouse-gas emissions to net zero within a few decades. While implementing the treaty will be an enormous challenge, for the first time ever climate stabilization and hence limiting climate risks including weather extremes and sea-level rise comes into reach. It is the beginning, not the end, of a process that now requires rapid implementation strong policy instruments that live up to the aspirations of the agreement.

Making sense of emission reduction pledges: modeling experts gather in Potsdam

11/16/2015 - Economists and scientists this week come from all over the world to Potsdam for the annual meeting of the Integrated Assessment Modeling Consortium (IAMC). In the run-up of the UN climate summit in Paris, one focus of the experts’ discussions will be the greenhouse gas emission reduction pledges of governments, the so-called INDCs. To assess their real-world effects is crucial for mapping out policy options for and beyond the summit. Other issues to be debated include the modeling of climate impacts and sustainable development implications, the use of scenarios and the evaluation of model analysis.

Unprecedented number of briefings in run-up of climate summit

11/16/2015 - In the run-up of the much anticipated UN climate summit in Paris, scientists of the Potsdam Institute for Climate Impact Research (PIK) are involved in an unprecedented number of briefings and public events. In this crucial time, stakeholders and media increasingly ask for the perspective of science on the state of the Earth and perspectives for climate policy. Yet PIK scientists also try to directly inform interested citizens. It is impossible to provide a complete list of all such outreach efforts, but here are some noteworthy examples.

Edenhofer: A price for CO2 instead of emission targets at the World Climate Summit?

10.11.2015 - A global price target for CO2 might be a more sensible objective for the COP21 Climate Conference instead of the currently discussed emission volume targets. This is what Ottmar Edenhofer, chief economist of the Potsdam Institute for Climate Impact Research, is stating together with the renowned economic researcher Axel Ockenfels from Cologne, in a major guest article in the influential German newspaper Frankfurter Allgemeine Zeitung only weeks before the much awaited UN climate conference in Paris. Such a price could provide incentives to invest in alternative technologies and to reduce greenhouse-gas emissions.

How new coal power plants let climate goals go up in smoke

09/17/2015 - The window of opportunity for a global fossil fuel phase out is closing faster than expected. In particular poor but fast-growing developing countries are currently investing heavily in the construction of new coal power plants. However, one reason why this source of fuel is so cheap is that its price does not incorporate the social costs, such as health. This is the topic of the article “King Coal and the Queen of Subsidies” by Ottmar Edenhofer, chief-economist at the Potsdam-Institute for Climate Impact Research and Director of the Mercator Research Institute on Global Commons and Climate Change (MCC), now published in the journal Science.

Edenhofer speaking to finance ministers at OECD green tax conference

07/15/2015 - Strategies for environmental tax reform and growth were at the focus of a talk given by Ottmar Edenhofer, chief economist at the Potsdam Institute for Climate Impact Research, at a high-level conference in the run-up of the world climate summit in Paris COP21 later this year. The recent meeting was a joint initiative by the Organisation for Economic Co-operation and Development (OECD), the International Monetary Fund (IMF), the Worldbank and others. It was attended by Finance and Environment Ministers, senior policy makers and experts from more than 90 countries, including China and Indonesia, Mexico and Egypt, Sweden and Portugal.

Our Common Future Under Climate Change

07/10/2015 - This week, thousands of climate and social scientists as well as policy experts have met for the “Our Common Future under Climate Change” conference at the UNESCO headquarters in Paris, among them a large number of experts from the Potsdam Institute for Climate Impact Research (PIK). It has been the biggest gathering of high-ranking scientists paving the way for COP21 in December, laying out the state of science for fact-based decision-making.

Pope Francis' encyclical: PIK-scientists to speak in the Vatican and in Berlin

06/12/2015 - When the much anticipated environmental encyclical will be launched on 18 June, John Schellnhuber, director of the Potsdam Institute for Climate Impact Research (PIK) will give a speech in the Vatican. He's the only scientist to join Cardinal Peter Turkson for the presentation. In the run-up of the encyclical, Schellnhuber participated in a number of workshops organised by the Pontifical Academy of Sciences. The document issued by the leader of more than one billion Catholics around the world is expected to be an important signal on the road to a global agreement on reducing greenhouse-gas emissions which will be negotiated by governements at the world climate summit in Paris later this year.

Earth Day: Leading climate scientists publish essential elements for a global climate agreement

04/22/2015 - The Earth League, an international alliance of prominent climate scientists, outlined the elements of a global climate agreement in a stark statement published today, coinciding with Earth Day. Written by 17 world-leading scientists, among them PIK director Hans Joachim Schellnhuber, their statement clarifies in eight essential elements, what an international climate agreement in line with the 2 degree target should achieve in Paris in December. Bold action by decision-makers is required now to pave the way for a successful international agreement to reduce the risk of dangerous climate change, the Earth League members say.

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.

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.

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.

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.

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.

“Climate change mitigation doesn't cost the earth”: IPCC author Edenhofer

11/02/2014 - The Intergovernmental Panel on Climate Change (IPCC) completed its Fifth Assessment Report on Sunday in Copenhagen. Ottmar Edenhofer, Co-Chair of the IPCC Working Group III ‘Mitigation of Climate Change’, and one of the authors of the now released Synthesis Report, points to the contrast between the potentially irreversible impacts of unmitigated climate change and the manageable costs of ambitious mitigation.

Mitigating climate change through fighting poverty

10/29/2014 - Progress in climate change mitigation hinges on the alleviation of poverty in developing countries. To this end, the international community should pursue a policy that prioritizes the global reduction of greenhouse gases just as much as the development objectives of poorer countries. This is the result of a study conducted by a team of scientists led by experts from the Mercator Research Institute on Global Commons and Climate Change (MCC) and the Potsdam Institute for Climate Impact Research (PIK).

New numbers, new movement: from the UN Climate Summit to the Global Carbon Project

09/25/2014 - The UN climate summit this week in New York brought progress in an unexpected way. "Most of the politicians in the hall gave speeches of the same old conventional type – effusive formulation, minimalistic commitment," said Hans Joachim Schellnhuber, Director of the Potsdam Institute for Climate Impact Research, who himself took part in the meeting of 120 heads of state. "But it took place against a novel background, generated on the streets of New York by more than 300,000 people. If the politicians don't pull from the front, civil society will just have to push. Last week we saw how climate protection is developing into a world citizens' movement."

Edenhofer presents reform concept for EU emissions trading scheme in Brussels

09/29/2014 - The emissions trading scheme as the most important pillar of European climate policy is currently under great scrutiny, as permit prices have been low. Europe’s technical academies (Euro-CASE) just published a comprehensive reform concept that outlines pathways to advance the emissions trading scheme. Ottmar Edenhofer presented this report in Brussels, in personal meetings with Jos Delbeke, Director General for Climate Action of the European Commission, and Ivo Belet, rapporteur of the ETS reform for the European Parliament.

The cost of delay: White House report citing PIK research

08/30/2014 - Delaying climate policy might enhance costs substantially. The US government in a major recent report makes this finding a central message, citing a number of studies led by scientists of the Potsdam Institute for Climate Impact Research (PIK). Mitigation costs increase, on average, by approximately 40 percent for each decade of delay, the White House’s Council of Economic Advisors states in the report. Inaction is likely to cause persistent economic damages, they argue – many billions of Dollars each year in the US alone.