PIK in the Media
The European Union is considering steep cuts in greenhouse gas emissions. The EU only accounts for a fraction of total global emissions, but its actions could nevertheless have a big impact on future warming. Source: New Scientist, 25.03.2014
Nearly one-fifth of world cultural heritage sites would be affected by global warming of a further 3C, scientists warn. Source: The Guardian, 05.03.2014
Hans Joachim Schellnhuber and other researchers have developed a forecasting method that allows earlier predictions of the climate phenomenon El Niño. Russian, German and US scientists forecasting that an weather event is likely later this year. They say there is a 75 per cent chance of El Niño conditions emerging, which can produce abnormally low rainfall in eastern Australia. Source: Herald Sun, 13.02.2014.
Anders Levermann of the Potsdam Institute for Climate Impact Research says in his post on theguardian.com that an unmitigated climate change will hit global infrastructure hard and test the limits of our way of life. He defends scientific climate models and their capability of projecting the temperature of our planet against recent criticism and states that extreme weather is likely to intensify in the future. Source: The Guardian, 31.01.2014.
Brigitte Knopf of the the Potsdam Institute for Climate Impact Research says: “By 2030, it is possible to achieve a 40% emission reduction using existing technologies. But our models suggest that costs might rise sharply after 2040 if we do not incentivize technological innovation by clearly pricing greenhouse-gas emissions. Otherwise, the last step, from 70% or so to almost full decarbonization of the entire economy, could be hard to achieve.” Source: Nature, 28.01.2014.
When pondering the best way to study the impact of climate change, researcher Hans Joachim Schellnhuber liked to recall an old Hindu fable. The analogy worked. Although many researchers had modelled various aspects of the global-warming elephant, there had been no comprehensive assessment of what warming will really mean for human societies and vital natural resources. But that changed last year when the Inter-Sectoral Impact Model Intercomparison Project was launched. Source: Nature, 31.12.2013.
Scientists say climate change will not affect all regions of the world equally – especially when it comes to fresh water. The latest computer models indicate some places will get a lot less, while others get a lot more. Source: Voice of America, 20.12.2013
Climate change will increase the number of people at risk of absolute water scarcity by 40 percent this century, according to a German institute. Source: Bloomberg, 16.12.2013
An international scientific research project known as the Inter-Sectoral Impact Model Intercomparison Project (ISI-MIP), run by 30 teams from 12 countries, has attempted to understand the severity and scale of global impacts of climate change. The project compares model projections on water scarcity, crop yields, disease, floods among other issues to see how they could interact. Source: The Guardian (Environment), 17.12.2013
Stefan Rahmstorf, a leading climate scientist at the Potsdam Institute for Climate Impact Research in Germany, said that the new study is “excellent” and is a very convincing explanation for something that has puzzled other researchers for many years. The study, by two researchers who are not climate scientists, is seen as one of the most important insights into the apparent flatlining of global average temperatures over the past 15 years. Source: The Independent, 26.11.2013.
The Warsaw meeting will continue work toward a treaty limiting carbon dioxide emissions in all nations. To meet the 2-degree target, about two-thirds of proven fossil-fuel reserves must remain in the ground, mostly coal, according to the Paris-based International Energy Agency. Ottmar Edenhofer, chief economist at Germany’s Potsdam Institute for Climate Impact Research, said in an interview: “There is much more carbon underground than the amount which can still be released if dangerous climate change should be avoided. The challenge is that we have to provide the right incentives to the users of coal, oil and gas to leave a remarkable amount of these fossil fuels underground.” Source: Washington Post, 04.11.2013.
Dieter Gerten of the Potsdam Institute for Climate Impact Research, lead author of the study on water said: "If population growth continues, by the end of our century under a business as-usual scenario these figures would equate to well over 1 billion lives touched," and stresses that "this is on top of the more than 1 billion people already living in water-scarce regions today." Source: The Economic Times (India), 16.10.2013.
Based on modeling studies by the Potsdam Institute for Climate Impact Research, water scarcity will increase around the world due to climate change, with more than 500 million people affected if mean global warming is limited to 2 degrees Celsius (3.6 degrees Fahrenheit). "Our findings support the assertion that we are fundamentally destabilizing our natural systems,” Wolfgang Lucht, one of the study co-authors, was cited as saying in the statement. “We are leaving the world as we know it.” Source: Bloomberg, 08.10.2013.
Getting hundreds of experts to agree is never easy. Ottmar Edenhofer takes a firm, philosophical approach to the task. A portrait in: Nature, 18.09.2013.
Eleven days before the IPCC publishes its latest report, a group of eminent scientists says there is massive evidence of human responsibility; Source: The Guardian, 16.09.2013.
Research from the Potsdam Institute for Climate Impact Research showed a strong correlation between the amount people earned and their carbon footprint, with each additional £600 in weekly income resulting in an extra tonne of annual C02 emissions. Source: The Independent, 11.09.2013.
Dim Coumou and Alexander Robinson from the Potsdam Institute for Climate Impact Research have published a paper in Environmental Research Letters examining the frequency of extreme heat events in a warming world. They compared a future in which humans continue to rely heavily on fossil fuels (an IPCC scenario called RCP8.5) to one in which we transition away from fossil fuels and rapidly reduce greenhouse gas emissions (called RCP2.6). Source: The Guardian, 21.08.2013.
"We find that up until 2040, the frequency of monthly heat extremes will increase several fold, independent of the emission scenario we choose to take. Mitigation can, however, strongly reduce the number of extremes in the second half of the 21st century," lead author of a study, Dim Coumou , from the Potsdam Institute for Climate Impact Research , said. Source: The Times of India, 19.08.2013.
"In many regions, the coldest summer months by the end of the century will be hotter than the hottest experienced today," unless emissions of greenhouse gases are curbed, said Dim Coumou, of the Potsdam Institute for Climate Impact Research. Source: China Daily, 16.08.2013.
A recent paper, by Anders Levermann of the Potsdam Institute for Climate Impact Research in Germany and a half-dozen colleagues, implies that even if emissions were to stop tomorrow, we have probably locked in several feet of sea level rise over the long term. Source: The New York Times, 12.08.2013.