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Early Summer Monsoon forecast for India

05/07/2018 - the Indian Summer Monsoon will likely reach Central India between 11 and 19 June, according to the new forecast method developed at the Potsdam Institute for Climate Impact Research (PIK). The unique forecast had been developed specially for the central part of India where, before, early forecasting has never been made. The novel approach based on an analysis of observational data allows predicting the monsoon onset date 40 days in advance. Elena Surovyatkina leads the forecasts that showed to be successful already two years in a row. The monsoon onset date is of crucial importance for hundreds of millions of people in India. Climate change affects monsoon variability and hence makes accurate forecasting even more important.

Bankers, UN and scientists help assess climate risks for finance

04/26/2018 - Together, 16 banks, the United Nations, business consultants and scientists produced first guidance to help the financial industry become more transparent on climate-related risks and opportunities. The report they jointly published, entitled “Extending our horizons”, is based on economic scenarios provided by the Potsdam Instititute for Climate Impact Research, the International Institute for Applied Systems Analysis, and the International Energy Agency. The innovative methodology will support banks to implement the ground-breaking recommendations of the Financial Stability Board’s Task Force on Climate-related Financial Disclosures (FSB TCFD). It focuses on changes that the transition to a low-carbon economy will present to businesses. A complementary report on the physical impacts of climate change for businesses is planned for release in late June.

Girls'Day: PIK opens up doors and new perspectives to young and female future scientists

26/04/2018 - At this year's Girls'Day, schoolgirls from Berlin and Brandenburg had once again the opportunity to get to know the Potsdam Institute for Climate Impact Research (PIK) and career perspectives in science. About their research on climate change and their work as a researcher at PIK, Levke Caesar and Christina Roolfs reported to the 19 pupils participating. The action day was initiated to open up new career perspectives in mathematical and the natural sciences for girls and young women.

More than 14.000 Earth scientists meet in Vienna

06/04/2018 - The European Geophysical Union’s (EGU) general assembly in Vienna is one of the world's greatest scientific events – from 8 to 13 April, it attracts more than 14.000 scientists. Numerous experts from the Potsdam Institute for Climate Impact Research (PIK) give talks and participate in debates. A distinguished role is attributed to Stefan Rahmstorf, co-chair of PIK’s Earth System Analysis department, research domain 1. He has been asked to hold the first-ever EGU public lecture at the Vienna Museum for Natural History: “After Paris: Can we still control the climate crisis?”

Edenhofer and Foreign Minister Maas visit the United Nations

29/03/2018 - The designated Director and chief economist of the Potsdam Institute for Climate Impact Research, Ottmar Edenhofer, accompanied the new Federal Foreign Minister Heiko Maas on his first visit to the United Nations in New York. Edenhofer was the only guest of the ministerial delegation. Germany seeks a non-permanent seat on the UN Security Council in 2019 and 2020. Minister Maas held a number of talks and campaigned for strengthening the United Nations in times of national unilateralist leanings.

Stock-take 2018: Rapid emissions reductions would keep CO2 removal and costs in check

03/29/2018 - Rapid greenhouse-gas emissions reductions are needed if governments want to keep in check both the costs of the transition towards climate stabilization and the amount of removing already emitted CO2 from the atmosphere. To this end, emissions in 2030 would need to be at least 20 percent below what countries have pledged under the Paris climate agreement, a new study finds – an insight that is directly relevant for the global stock-take scheduled for the UN climate summit in Poland later this year. Removing CO2 from the atmosphere through technical methods including carbon capture and underground storage (CCS) or increased use of plants to suck up CO2 comes with a number of risks and uncertainties, and hence the interest of limiting them.

Worldbank report with PIK: climate change can trigger migration of millions

19/03/2018 - Climate change is a driver of future migration – in a worst-case scenario, it could force more than 100 million people out of their homes by 2050. This is shown by a groundbreaking Worldbank report, co-authored by scientists from the Potsdam Institute for Climate Impact Research (PIK). Subsaharan Africa and Southern Asia are among the most affected regions, to a lesser extent also Latin America. Water scarcity and yield failures are, along with a number of other economical and social factors, becoming more and more relevant for migration within countries. This so-called internal migration is the subject of the report. However, rapid reductions of greenhouse-gas emissions can reduce this future migration by up to 80 percent, according to the report.

Enhanced weathering of rocks can help to suck CO2 out of the air – a little

03/06/2018 - Weathering of huge amounts of tiny rocks could be a means to reduce the greenhouse gases in the atmosphere. While this is normally a slow natural process during which minerals chemically bind CO2, technological upscaling could make this relevant for so-called negative emissions to help limit climate risks. Yet, the CO2 reduction potential is limited and would require strong CO2 pricing to become economically feasible, according to the first comprehensive assessment of costs and possibilities now published in the journal Environmental Research Letters.

Social and Natural science together: New Co-Directors to lead the Potsdam Institute for Climate Impact Research

23/02/2018 - The Potsdam Institute for Climate Impact Research (PIK) is reinventing itself – appointing a twin leadership bringing together natural sciences and social sciences stronger than ever. In late September, the German climate economist Ottmar Edenhofer and the Swedish Earth system scientist Johan Rockström will become directors of the internationally renowned institute which is a member of the Leibniz Association. This was decided on Friday by the institute's Board of Trustees, headed by the Brandenburg Ministry of Science, Research and Culture and the German Federal Ministry of Education and Research. The retirement of the founding director Hans Joachim Schellnhuber this autumn after a quarter of a century as the head of the institute marks the beginning of a new era in Potsdam.

Coal phase-out: Announcing CO2-pricing triggers divestment

01/29/2018 - Putting the Paris climate agreement into practice will trigger opposed reactions by investors on the one hand and fossil fuel owners on the other hand. It has been feared that the anticipation of strong CO2 reduction policies might – a ‘green paradox’ – drive up these emissions: before the regulations kick in, fossil fuel owners might accelerate their resource extraction to maximize profits. Yet at the same time, investors might stop putting their money into coal power plants as they can expect their assets to become stranded. Now for the first time a study investigates both effects that to date have been discussed only separately. On balance, divestment beats the green paradox if substantial carbon pricing is credibly announced, a team of energy economists finds. Consequently, overall CO2 emissions would be effectively reduced.

Coalition-building for pricing CO2 could make sense even for egoistic countries

02/26/2018 - Even countries that tend to act in an egoistic way in the long run have an incentive to participate in international climate stabilization pathways and couple CO2 pricing systems, a new game-theoretical study shows. Yet they might only do this if pioneer coalitions for pricing greenhouse gas emissions make the first steps. If this is the case, the egoistic countries temporarily enjoy the benefits of avoided climate change without paying for it, but in the longer term can join the pioneers and link to their already established models of CO2 pricing. Forming larger and larger coalitions always reaps additional benefits of avoided damages from climate change. These benefits, even though unequally distributed across the coalition members, can be distributed via financial transfers. This makes it attractive to join, even for egoistic countries.

PIK Research Days: “Keep digging in your pockets”

02/23/2018 - Scientists and staff of the Potsdam Institute for Climate Impact Research (PIK) gathered this week for their annual roadshow of scientific achievements and discussions of future projects. Climate negotiations, climate migration, public health, sea-level legacy, jet streams, ice losses at Antarctica, carbon pricing – these were just some of the topics presented by PIK’s four research domains. This year’s research days focused in particular on the upcoming 1.5°C IPCC special report as well as on global change, big data and digitalization.

Sea-level legacy: 20cm more rise by 2300 for each 5-year delay in peaking emissions

02/20/2018 - Peaking global CO2 emissions as soon as possible is crucial for limiting the risks of sea-level rise, even if global warming is limited to well below 2°C. A study now published in the journal Nature Communications analyzes for the first time the sea-level legacy until 2300 within the constraints of the Paris Agreement. Their central projections indicate global sea-level rise between 0.7m and 1.2m until 2300 with Paris put fully into practice. As emissions in the second half of this century are already outlined by the Paris goals, the variations in greenhouse-gas emissions before 2050 will be the major leverage for future sea levels. The researchers find that each five year delay in peaking global CO2 emissions will likely increase median sea-level rise estimates for 2300 by 20 centimeters.

PIK ranked as the top climate think tank worldwide

14/02/2018 - The Potsdam Institute for Climate Impact Research (PIK) is the world’s most influential environmental think tank, a new ranking shows. For the ninth year in a row, PIK has been ranked among the top think tanks in the world working on environmental policy. The "Global Go To Think Tank Index Report 2017" that has just been published by the University of Pennsylvania, altogether considered more than 6,500 institutions across the globe.

Reports of coal’s terminal decline are premature

02/07/2018 - While less new coal-fired power plants are now being built in China and India, the planned expansion in the use of coal in fast-growing emerging economies, such as Turkey, Indonesia and Vietnam, will in part cancel out the reduction. Only if the countries of the world actively counteract this trend, they can achieve the climate goals agreed in the Paris Agreement. These are the results of the study “Reports of coal’s terminal decline may be exaggerated,” authored by researchers from the Potsdam Institute on Climate Impact Research (PIK) and the Mercator Research Institute on Global Commons and Climate Change (MCC), published in the journal Environmental Research Letters

Potsdam-China and back: "When climate projections return home"

02/05/2018 - China's Guanting region is threatened by water scarcity - how water and land can be used sustainably was explored over several years by a German-Chinese team headed by the Potsdam Institute for Climate Impact Research (PIK). Now the scientists published a book on their findings. The researchers applied computer simulations on climate change and water cycles in Brandenburg to the Guanting region. They thereby gained valuable new methodological insights for refining their models - and now bring this back to Germany: a learning process across continents.

National Academy of Sciences Leopoldina appoints Edenhofer

01/31/2018 - Ottmar Edenhofer, Chief Economist at the Potsdam Institute for Climate Impact Research, was elected member of the Leopoldina. The honouring is a special recognition of his scientific achievements and his personality, said Leopoldina President Jörg Hacker about Edenhofer, who is also Director of the Mercator Research Institute on Global Commons (MCC) and Professor of Economics of Climate Change at TU Berlin. The selection of a member for the German National Academy of Sciences Leopoldina follows strict standards and requires a broad agreement of the Extended Presidium.

EU commissioner Stylianides visits PIK

01/24/2018 - The European Commissioner for Humanitarian Aid and Crisis Management, Christos Stylianides, visited the Potsdam Institute for Climate Impact Research (PIK) together with Director-General Monique Pariat and members of cabinet. He was interested in the latest climate research and particularly in prevention measures for the increasing risks of floods and forest fires due to climate change.

FAZ-Blog: PIK climate scientists on expedition to the Antarctic

01/23/2017 - The researchers Ricarda Winkelmann and Ronja Reese from the Potsdam Institute for Climate Impact Research (PIK) recently departed for their expedition to Antarctica with the research vessel "Polarstern" of the Alfred Wegener Institute. Over the next few weeks, they will report regularly on their expedition, ice and climate change in a blog on FAZ.net. Usually, the two mathematicians at PIK work with numerical models and computer simulations. In the next few weeks, however, they will be collecting data on the Antarctic sea ice to learn more about the sensitivity of the gigantic ice masses of the ice continent.

Biomass plantations not compatible with planetary boundaries

01/22/2018 - Planting trees or grasses on a grand scale in plantations to extract CO2 from the atmosphere - this could make a long-term contribution to climate protection, but it would push the planet beyond ecological limits in other dimensions. A new study by the Potsdam Institute for Climate Impact Research (PIK) in the journal Nature Climate Change now for the first time establishes a connection between ambitious international climate objectives and the more comprehensive concept of planetary boundaries. If biomass plantations in which plants bind carbon dioxide during growth are massively expanded, this would entail enormous risks for areas that are already stressed, such as biodiversity, biogeochemical flows, water resources and land use. According to the study, biomass as a means to capture and store CO2 can therefore only make a limited contribution. In order to stabilize the climate, a rapid reduction of greenhouse gas emissions from the combustion of coal, oil and gas is crucial.

Adaptation now: River flood risks increase around the globe under future warming

11/01/2018 - Rainfall changes caused by global warming will increase river flood risks across the globe. Already today, fluvial floods are among the most common and devastating natural disasters. Scientists have now calculated the required increase in flood protection until the 2040s worldwide, breaking it down to single regions and cities. They find that the need for adaptation is greatest in the US, parts of India and Africa, Indonesia, and in Central Europe including Germany. Inaction would expose many millions of people to severe flooding.

PIK´s Jürgen Kurths ranked as one of the most cited researchers

01/04/2018 – Jürgen Kurths was ranked as one of the most highly cited researchers in his field in 2017. His papers account for the top 1% of literature quoted in engineering sciences globally. The co-chair of research domain Transdisciplinary Concepts and Methods at the Potsdam Institute for Climate Impact Research (PIK) and Head of Nonlinear Dynamics at Humboldt-University in Berlin publishes numerous research articles in high-ranking scientific journals every year.

Detecting abrupt transitions – be it in ocean heat or financial markets

01/03/2018 - From stock indices to sea surface temperatures, a lot of relevant data comes in the form of time series. Reliable detection of abrupt transitions such as a downswing of stock values or water warming during an El Niño event in the Pacific is obviously important, but most analyses fail to take into account the uncertainties in the data. The challenge is to distinguish sudden changes while being aware of the underlying uncertainties. Although there are a number of change point detection methods, scientists now propose for the first time an approach that accurately represents the time series uncertainties and thus provide a more robust analysis.

PIK scientists at the Chaos Communication Congress 34C3

29/12/2017 - For four days between Christmas and New Year´s, thousands of hackers, experts and artists meet every year to exchange news and views and learn about new technological developments and tools. The 34th Chaos Communication Congress (34C3) takes place in Leipzig this year, the organizers expect more than 13.000 participants. Science is represented as well, this year also by experts of the Potsdam Institute for Climate Impact Research (PIK) - climate change is one of this year´s main themes.

American Geophysical Union: Rahmstorf awarded with Climate Communication Prize at conference with 20,000 researchers

12/14/2017 - For his achievements in communicating climate science findings Stefan Rahmstorf of the Potsdam Institute for Climate Impact Research (PIK) was honoured with the Climate Communication Prize of the American Geophysical Association (AGU). He was awarded at the AGU Fall Meeting, where more than 20,000 scientists gathered at the largest international meeting of Earth and Space Sciences to discuss new trends and research findings.

Meeting with Brandenburg´s prime minister addresses commission on the future of the coal region

13/12/2017 - Brandenburg´s prime minister Dietmar Woidke and other members of the federal state government have convened with the heads of Potsdam´s climate research institutions. At the meeting at the Institute for Advanced Sustainability Studies (IASS), the focus was on the energy policy of Brandenburg, especially in regard to coal mining in the Lausitz region. The director of the Potsdam Institute for Climate Impact Research, Hans Joachim Schellnhuber, proposed a future commission for Brandenburg. Experts could develop recommendations to generate new opportunities for the Lausitz region together with the people who live here.

ReKliEs-De: Future climate trends in Germany

12/11/2017 - More heat-waves and heavy rainfalls, fewer cold spells, an increase in the annual mean temperature by 4°C, this is how the climate in Germany could evolve until the year 2100 in a scenario of unabated climate change - with massive consequences for agriculture and public health. These are the results of the project ReKliEs-De ("Regional Climate Projections Ensemble for Germany") which for the first time estimates current climate projections for the German federal states and river basins. The prospects for Germany in a business as usual scenario are severe - if no active countermeasures will be taken. However, the results also show that if all climate protection agreements will be consistently implemented, the two-degree target agreed in Paris is still achievable.

Tiny ice losses at Antarctica’s fringes can accelerate ice loss far away

12/12/2017 - A thinning of small areas of floating ice at Antarctica’s coast can accelerate the movement of ice grounded on rocks hundreds of kilometers away, a new study shows. It is known that the ice shelves surrounding the continent regulate the ice flow from the land into the ocean. So far it was assumed that the ice flow is most vulnerable to melting at the base near the grounding line where the ice flows from land into the sea and becomes afloat. Now scientists found that also melting near the fringes and in the midst of the ice shelves can have direct effects reaching very far inland. This could increase ice loss and hence sea-level rise.

Transformation to wind and solar could be achieved with low indirect greenhouse gas emissions

12/08/2017 - Different low carbon technologies from wind or solar energy to fossil carbon capture and sequestration (CCS) differ greatly when it comes to indirect greenhouse gas emissions in their life cycle. This is the result of a comprehensive new study conducted by an international team of scientists that is now published in the journal Nature Energy. Unlike what some critics argue, the researchers not only found that wind and solar energy belong to the more favorable when it comes to life-cycle emissions. They also show that a full decarbonization of the global power sector by scaling up these technologies would induce only modest indirect greenhouse gas emissions – and hence not impede the transformation towards a climate-friendly power system.

Climate and public health: Leopoldina Dialogue in Potsdam

12/05/2017 - Climate change related risks for public health are one of the most important challenges of today. However, the science communities on both sides of the fence have so far not sufficiently interacted to reflect the critical nexus of climate change and health. Taking the first mover advantage, a workshop of the German National Academy of Sciences Leopoldina at the Potsdam Institute for Climate Impact Research (PIK) now brought together renowned scientists from climate sciences, health and medicine, psychology, environmental sciences, social sciences and economics. They will develop a publication offering stakeholder and decision-makers orientation on public health and climate policy.

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