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Ricarda Winkelmann wins academics' young scientist award

Ricarda Winkelmann wins academics' young scientist award

06/12/2018 - Ricarda Winkelmann from the Potsdam Institute for Climate Impact Research (PIK) has been honoured as this year's Young Scientist of the Year by 'academics' by ZEIT publishing group. Winkelmann was awarded due to her outstanding and groundbreaking research and publication achievements in researching the climate system and the risks of climate change. She is junior professor for Climate System Analysis at the University of Potsdam and scientist at PIK in research domain Earth System Analysis. She heads the Leibniz project "DominoES - Domino Effects in the Earth System" as well as the PIK working group on ice sheet dynamics.

Ricarda Winkelmann wins academics' young scientist award - Read More…

Ten PIK researchers among the most influential scientists in the world

Ten PIK researchers among the most influential scientists in the world

29/11/2018 - Ten scientists, coming from different research domains from the Potsdam Institute for Climate Impact Research (PIK) are among the most highly cited researchers worldwide, according to a new ranking just published. Therewith, they are among the most influential scientifists in the world, their studies among the top 1% of scientific literature. Whether natural sciences or social sciences, PIK is one of the most renowned research institutions in Germany and worldwide, as the now published ranking once again shows.

Ten PIK researchers among the most influential scientists in the world - Read More…

Winter weather extremes in the US and Europe: messing with giant airstreams in the stratosphere

Winter weather extremes in the US and Europe: messing with giant airstreams in the stratosphere

22/11/2018 - Over Thanksgiving, arctic air masses are predicted to bring record-cold temperatures and frigid winds to the Northeast of the United States. Driver for such winter weather extremes is often the stratospheric polar vortex, a band of fast moving winds 30 kilometers above the ground. In winter, when the polar vortex is disturbed by upward-blowing air masses, this can bring cold spells over Northeastern America or Eurasia, a new study now shows. And paradox as it might seem, climate change might further disrupt the complex dynamics in the atmosphere – bringing us not only more hot extremes in summer but potentially also cold spells in winter.

Winter weather extremes in the US and Europe: messing with giant airstreams in the stratosphere - Read More…

Statement on the current California forest fires

Statement on the current California forest fires

12.11.2018 - The California forest fires are currently burning across the State having forced hundreds of thousands of residents to flee their homes, among them also stars like Miley Cyrus, Gerard Butler, Kim Kardashian or Lady Gaga. These are probably the worst forest fires in California's history.

Statement on the current California forest fires - Read More…

Extreme weather will likely become more frequent due to stalling of giant waves in the atmosphere

Extreme weather will likely become more frequent due to stalling of giant waves in the atmosphere

01/11/2018 - Computer simulations predict a strong increase of events in which the undulations of the jet stream in the atmosphere stop moving along and grow very large. This can favor more frequent extreme weather events on the ground: the westerly winds stop pushing forward weather systems which hence become more persistent – a few sunny days grow into heatwaves, extended rains lead to floods. An international team of scientists links this to human-caused warming specifically in the Arctic.

Extreme weather will likely become more frequent due to stalling of giant waves in the atmosphere - Read More…

Manifesto by Wolfgang Lucht: "Das Wasser der Nachfolge"

Manifesto by Wolfgang Lucht: "Das Wasser der Nachfolge"

05.10.2018 - We live in the Anthropocene, an era in which mankind as a global, geological force is changing the earth. Climate change, ocean acidification, extinction of species, deforestation and overfishing are just a few symptoms of human influence on our planet. "So what is the churches' opinion on the environmental question?" What do we say as Christians?", asks Wolfgang Lucht, Co-Chair of the Research Domain Earth System Analysis at the Potsdam Institute for Climate Impact Research (PIK) in his manifesto "Das Wasser der Nachfolge". This chapter was published in the recently released German book "Life in the Anthropocene - Christian perspectives for a culture of sustainability" by oekom. His manifesto directly adresses the churches, whose commitment is vital for the necessary transformation to a socially and environmentally sustainable society.

Manifesto by Wolfgang Lucht: "Das Wasser der Nachfolge" - Read More…

"Which Future?!" and "Schimmelreiter": Climate research on stage

"Which Future?!" and "Schimmelreiter": Climate research on stage

02/10/2018 - What if Italy would exit the Euro and the currency would collapse? What if there were no money at the ATMs, due to a new banking crisis? What if there were a migration crisis? What if there were sudden and extreme climate changes? Questions like theses are discussed in the new play "Let Them Eat Money. Welche Zukunft?!" (Which Future?!) that just premiered at the Deutsche Theater in Berlin.

"Which Future?!" and "Schimmelreiter": Climate research on stage - Read More…

Europe’s renewable energy regulation could harm global forests

Europe’s renewable energy regulation could harm global forests

12/09/2018 - To fulfill the Paris Climate Agreement, which is backed by science, the European Union laudably plans to strongly enhance its renewable energy ambition – but a provision regulating the use of biomass for energy raises great concern among scientists. The new regulation would allow countries, power plants and factories to cut down trees and burn them for power or heat generation and to claim that this fully qualifies as low-carbon renewable energy. Currently Europe has mainly made use of biomass from wood waste and residues for bioenergy generation. But use could now ramp up to levels requiring massive input of stem wood as well, and this would be allowed under the new regulation. In stark contrast to the intentions of the EU, this would in fact also increase European greenhouse gas emissions and accelerate climate change, a team of scientists now argues in a comment published in Nature Communications.

Europe’s renewable energy regulation could harm global forests - Read More…

Nice sunny days can grow into heat waves – and wildfires: summer weather is stalling

Nice sunny days can grow into heat waves – and wildfires: summer weather is stalling

20/08/2018 - Be it heavy downpours or super-hot spells, summer weather becomes more persistent in North America, Europe and parts of Asia. When those conditions stall for several days or weeks, they can turn into extremes: heatwaves resulting in droughts, health risks and wildfires; or relentless rainfall resulting in floods. A team of scientists now presents the first comprehensive review of research on summer weather stalling focusing on the influence of the disproportionally strong warming of the Arctic as caused by greenhouse-gas emissions from burning fossil fuels. Evidence is mounting, they show, that we likely meddle with circulation patterns high up in the sky. These are affecting, in turn, regional and local weather patterns – with sometimes disastrous effects on the ground. This has been the case with the 2016 wildfire in Canada, another team of scientists show in a second study.

Nice sunny days can grow into heat waves – and wildfires: summer weather is stalling - Read More…

Planet at risk of heading towards irreversible “Hothouse Earth” state

Planet at risk of heading towards irreversible “Hothouse Earth” state

06/08/2018 - Keeping global warming to within 1.5-2°C may be more difficult than previously assessed. An international team of scientists has published a study in Proceedings of the National Academy of Sciences (PNAS) showing that even if the carbon emission reductions called for in the Paris Agreement are met, there is a risk of the planet entering what the scientists call “Hothouse Earth” conditions. A “Hothouse Earth” climate will in the long term stabilize at a global average of 4-5°C higher than pre-industrial temperatures with sea level 10-60 m higher than today, the paper says. The authors conclude it is now urgent to greatly accelerate the transition towards an emission-free world economy.

Planet at risk of heading towards irreversible “Hothouse Earth” state - Read More…

Summer of extremes - PIK experts in the media

Summer of extremes - PIK experts in the media

07/26/2018 - Everybody seems to be talking about the weather these days, with extreme heat in Germany and Europe, forest fires in Sweden, Greece and California. From Japan to the Arctic - the Northern hemisphere is currently experiencing a heat wave and experts from the Potsdam Institute for Climate Impacts Research (PIK) were interviewed by numerous media outlets for an assessment of the current situation in the light of climate change.

Summer of extremes - PIK experts in the media - Read More…

Better be safe than sorry: economic optimization risks tipping of important Earth system elements

Better be safe than sorry: economic optimization risks tipping of important Earth system elements

06/15/2018 - Optimizing economic welfare without constraints might put human well-being at risk, a new climate study argues. While being successful in bringing down costs of greenhouse gas reductions for instance, the concept of profit maximization alone does not suffice to avoid the tipping of critical elements in the Earth system which could lead to dramatic changes of our livelihood. The scientists use mathematical experiments to compare economic optimization to the governance concepts of sustainability and the more recent approach of a safe operating space for humanity. All of these turn out to have their benefits and deficits, yet the profit-maximizing approach shows the greatest likelihood of producing outcomes that harm people or the environment.

Better be safe than sorry: economic optimization risks tipping of important Earth system elements - Read More…

What saved the West Antarctic Ice Sheet 10,000 years ago will not save it today

What saved the West Antarctic Ice Sheet 10,000 years ago will not save it today

06/14/2018 - The retreat of the West Antarctic ice masses after the last Ice Age was reversed surprisingly about 10,000 years ago, scientists found. This is in stark contrast to previous assumptions. In fact, it was the shrinking itself that stopped the shrinking: relieved from the weight of the ice, the Earth crust lifted and triggered the re-advance of the ice sheet. However, this mechanism is much too slow to prevent dangerous sea-level rise caused by West Antarctica’s ice-loss in the present and near future. Only rapid greenhouse-gas emission reductions can.

What saved the West Antarctic Ice Sheet 10,000 years ago will not save it today - Read More…

PIKturing our future: The young scientists’ visions for the institute

PIKturing our future: The young scientists’ visions for the institute

06/05/2018 - Once a year, the doctoral candidates of the Potsdam Institute for Climate Impact Research (PIK) gather to discuss their research and exchange ideas. This year’s "PhD day" aimed at giving young scientists the possibility to think about and discuss their visions, wishes and ideas for the future of the institute. What do young scientists need to be able to perform excellent science? In what areas do they need more support and in what way? How can they interact with society during their work?

PIKturing our future: The young scientists’ visions for the institute - Read More…

PIK experts at the intersessional climate conference in Bonn

PIK experts at the intersessional climate conference in Bonn

11/05/2018 - In the run-up to this year´s UN climate conference in Katowice in Poland, about 3000 experts and observers met in Bonn to discuss how to implement the Paris Agreement which is to enter into force in 2020. Two key elements of these “intersessionals” were the progress in advancing the Paris Agreement “rulebook”, and the initial in-person phase of the Talanoa dialogue that was introduced at COP23 last year. Several scientists from the Potsdam Institute for Climate Impact Research (PIK) took part in various meetings and presentations in Bonn.

PIK experts at the intersessional climate conference in Bonn - Read More…

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

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.

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

Stronger evidence for a weaker Atlantic overturning

Stronger evidence for a weaker Atlantic overturning

04/11/2018. The Atlantic overturning – one of Earth’s most important heat transport systems, pumping warm water northwards and cold water southwards – is weaker today than any time before in more than 1000 years. Sea surface temperature data analysis provides new evidence that this major ocean circulation has slowed down by roughly 15 percent since the middle of the 20th century, according to a study published in the highly renowned journal Nature by an international team of scientists. Human-made climate change is a prime suspect for these worrying observations.

Stronger evidence for a weaker Atlantic overturning - Read More…

More than 14.000 Earth scientists meet in Vienna

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?”

More than 14.000 Earth scientists meet in Vienna - Read More…

PIK Research Days: “Keep digging in your pockets”

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.

PIK Research Days: “Keep digging in your pockets” - Read More…

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

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.

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

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