PIK expertise at COP29 in Azerbaijan
11/11/2024 - The 29th UN Climate Change Conference (COP29) takes place from 11 to 22 November 2024 in Baku, Azerbaijan. The conference brings together delegates from nearly 200 countries, including leading scientists from the Potsdam Institute for Climate Impact Research (PIK), to discuss the latest scientific findings and policy measures to mitigate the climate crisis.
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New report: Global water crisis threatens more than half of world food production
10/17/2024 - The global water cycle is increasingly out of balance – with consequences for the world economy and humanity. This is the core message of a report by the Global Commission on the Economics of Water (GCEW), including Johan Rockström, Director of the Potsdam Institute for Climate Impact Research (PIK). The global water crisis could endanger more than half of global food production by 2050, the authors warn. This could result in a global median gross domestic product (GDP) decline of about eight percent. Lower-income countries may even face a decline in GDP of ten to fifteen percent. The Commission argues in favour of a new economics of water, which must redefine the way we value water. It also suggests five mission areas to counteract the existing water crisis.
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Lisa Murken receives Hermann Eiselen Science Prize for excellent research
09/12/2024 - This year's prestigious Hermann Eiselen Science Award goes to Lisa Murken, a researcher at the Potsdam Institute for Climate Impact Research (PIK). In her work, the agricultural economist focuses on the complex relationships between land ownership and the ability of small farmers to adapt to climatic changes. The prize is awarded for outstanding scientific work whose findings contribute to improving the world's food supply.
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From ocean currents to the energy transition: thousands visit PIK for Potsdam Science Day
05/04/2024 - Under the motto "Research. Discover. Join in.", the Potsdam Institute for Climate Impact Research (PIK), together with the other Telegrafenberg institutes, hosted this year's Potsdam Science Day. On the first Saturday in May 6,200 interested visitors came to find out about the work of researchers at PIK at information stands, lectures and hands-on experiments in the sunshine and spring-like temperatures.
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Climate change could become the most important driver of biodiversity loss by mid-century
04/26/2024 - Whereas global biodiversity has declined between 2 and 11 percent during the 20th century due to land-use change alone, climate change could become the main driver of biodiversity decline by the mid-21st century. That is the result of the largest modelling study of its kind by more than 50 scientists from over 40 institutions now published in the journal Science. The study was led by the German Centre for Integrative Biodiversity Research (iDiv), with contribution of the Potsdam Institute for Climate Impact Research (PIK).
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Girls' Day 2024 at PIK: Exciting insights into climate research
04/25/2024 - More than 15,000 options, around 135,000 spots available across Germany, more schoolgirls than ever before: this year's Girls' Day has set new records. At the Potsdam Institute for Climate Impact Research (PIK), 19 girls from Berlin and Brandenburg had the opportunity to take an exclusive look behind the scenes at the institute.
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PIK research among most cited papers in policy documents worldwide
04/19/2024 - Three research papers conducted by PIK director Johan Rockström are among the top ten most cited papers in policy documents. This is according to an analysis of data provided to the journal Nature.
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Food matters: Healthy diets increase the economic and physical feasibility of 1.5°C
03/28/2024 - A global shift to a healthier, more sustainable diet could be a huge lever to limit global warming to 1.5°C, researchers at the Potsdam Institute for Climate Impact Research (PIK) find. The resulting reduction of greenhouse gas emissions would increase the available carbon budget compatible with limiting global warming to 1.5°C, and allow to achieve the same climate outcome with less carbon dioxide removal and less stringent CO2 emissions reductions in the energy system. This would also reduce emission prices, energy prices and food expenditures.
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From knowledge to action: "10 Must Knows" as a guide to preserving biodiversity
03/25/2024 - From as yet undiscovered biodiversity to resilient forests and the impact of food consumption on nature: 64 experts have now published their knowledge and recommendations in the form of "10 Must Knows from Biodiversity Science" for 2024. The Leibniz Research Network Biodiversity's new report provides policymakers and society with concrete ways to effectively conserve and sustainably use biodiversity at the local, national, and European levels and thereby also mitigate climate change. With this publication, the researchers contribute current scientific facts to the debate on the German National Biodiversity Strategy, which is to be adopted before the next United Nations Biodiversity Conference in autumn 2024.
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Transforming energy, land use, production and consumption to safeguard Global Commons
03/22/2024 - Transforming energy, land use, production and consumption is key to safeguard Global Commons and to keep them within the safe space of the planetary boundaries. This is the result of the new Global Commons Stewardship report with contribution of researchers from the Potsdam Institute of Climate Impact Research (PIK) and PIK Director Johan Rockström. It delivers an integrated assessment of the effects of those transformations and how they interact with each other.
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Earth’s freshwater cycle out of stable state
03/04/2024 - Human activity has pushed variation in the planet’s freshwater cycle well outside of its pre-industrial range. An international research team, including scientists from the Potsdam Institute for Climate Impact Research (PIK) and PIK Director Johan Rockström, found that the planetary boundary for freshwater was surpassed by the mid-twentieth century.
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Citizens' Assembly on nutrition recommends steps towards a more sustainable diet
02/21/2024 - Free lunches for children, conscious shopping made easy with a mandatory government label and a mandatory passing on of edible food by food retailers - these are three key recommendations from the German Parliament's first Citizens' Assembly "Nutrition in Transition". On 20 February 2024, the committee presented its proposals to the Bundestag. The Citizens' Assembly's Scientific Advisory Board, which includes Hermann Lotze-Campen, Head of the Department “Climate Resilience” at the Potsdam Institute for Climate Impact Research PIK, analysed the results from their perspective.
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Increasing nitrogen fertilization could pollute rivers and worsen water scarcity
02/06/2024 – In the 2050s, one-third of the world's rivers could be affected by water scarcity or be polluted by nitrogen. This is the result of a study by an international team of scientists, including researchers from the Potsdam Institute for Climate Impact Research and led by scientists of Wageningen University. They assessed the scarcity of clean water under ongoing climate change and show how water pollution from intensified agriculture and untreated sewage could limit clean water supply.
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Transforming food systems could create multi-trillion dollars of economic benefits every year
01/29/2024 - Transforming food systems around the world would lead to socio-economic benefits summing up to 5 to 10 trillion USD a year, shows a new global policy report produced by leading economists and scientists of the Food System Economics Commission (FSEC). The most ambitious and comprehensive study of food system economics so far underlines that food systems are currently destroying more value than they create and that an overhaul of food system policies is urgently needed. On the other hand, the cost of transformation would be much lower than the potential benefits, offering a better life to hundreds of millions of people.
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More rain, fewer droughts – rainfall effects from targeted forestation can reduce climate change
01/10/2024 - By prioritizing increases in rainfall, forestation programs may not only mitigate global climate change itself but also reduce its concrete negative effects such as droughts. That is the conclusion of a new study by a team of researchers including the Potsdam Institute for Climate Impact Research (PIK).
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CO2 emissions at record high in 2023
12/05/2023 - Global carbon dioxide emissions from fossil fuel use will amount to 36.8 billion tonnes in 2023, a record high that exceeds the 2022 level by 1.1% - the latest Global Carbon Budget report finds. This is a long way off the significant reductions that are needed to reach the Paris Agreement climate goals.
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A full picture of planetary resilience: All boundaries mapped out, six of nine crossed
09/13/2023 - For the first time, an international team of scientists is able to provide a detailed outline of planetary resilience by mapping out all nine boundary processes that define a safe operating space for humanity. From global warming to the biosphere and deforestation, from pollutants & plastic to nitrogen cycles and freshwater: Six of nine planetary boundaries are being transgressed, while pressure in all those boundary processes is increasing, cutting-edge research published in the journal Science Advances shows.
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Women’s diet quality in India could be improved by forest foods
06/22/2023 - Wild foods from forests and common land play an important role in improving the quality of diets among Indian women, a new study finds. The harvest of wild, nutritious food, especially during June and July, is of vital importance to vulnerable women in India, where more than 80 percent are estimated to be micronutrient deficient and suffer from poor health.
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Large-scale nature conservation efforts alone will not preserve benefits for our societies
05/16/2023 - The enlargement of protected areas and carbon price incentives for reforestation alone will not stop biodiversity decline and the ongoing loss of critical ecosystem functions, if they are not accompanied by measures that also target managed landscapes. A new study published in Nature Communications, led by the Potsdam Institute for Climate Impact Research (PIK), shows that even in scenarios with a high demand for land it is possible to maintain biodiversity-friendly landscapes, which also provide critical services such as pollination and healthy soils. The research demonstrates that land use is not a zero-sum game but that it matters where farmland is located in order to promote landscape diversity. With the right incentives, farmed landscapes could be managed in a way that enhances the numerous benefits nature offers to society and that support the biodiversity conservation targets of protected areas.
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Unique Institute for Sustainability: Alexander Popp is Professor at the University of Kassel
05/02/2023 - Since 1st of May 2023, Alexander Popp is Professor for Sustainable Land Use and Climate Protection at the Department of Ecological Agricultural Sciences at Kassel University. A unique scientific centre, the Institute for Sustainability, is currently being established there. It deals with the challenges of sustainable development in the sense of the 17 Sustainable Development Goals of the United Nations.
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Water has to become a common good – two new reports show
03/22/2023 - Water overuse and a failure to recognize that countries are interdependent when it comes to the global water cycle has put the world on a path to a potential 40% freshwater supply shortfall by the end of the decade. Water therefore has to be treated as a global common good. This is stated in a report by the Global Commission on the Economics of Water (GCEW) and also in a Nature Commentary – both led by PIK director Johan Rockström and released in the context of the UN Water Conference in New York, the first such meeting in 50 years.
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FABLE: How to get food and land use systems on track
02/03/2023 - Sustainable futures for food and land use systems are only possible with coordinated, major efforts around the world in the next decade. This is what a team of researchers, including PIK, from 20 countries found by using FABLE (Food, Agriculture, Biodiversity, Land-Use and Energy) modeling tools. The results are now published in a Special Issue.
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Berlin could produce much of its vegetables locally
01/27/2023 - Berlin could produce a surprisingly large proportion of its vegetable requirements itself if unused areas were used for this purpose, such as flat roofs, allotments, cemetery areas that are no longer in use, or even supermarket parking lots. Researchers have now calculated this. However, the use of this land is tied to many preconditions.
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Smart nitrogen management can strongly reduce pollution
01/06/2023 - To increase food and feed supply, agriculture has used more and more industrial nitrogen fertilizers and manure. However, over half of these nitrogen inputs to croplands are currently lost to the environment, contributing to air pollution and its related diseases, water eutrophication, soil acidification, climate change, and biodiversity loss. Nitrogen pollution has become a global challenge and next crisis. An international team of researchers explored cost-effective nitrogen mitigation strategies for global croplands in a new study, now published in Nature.
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Global inequality prevents effective climate protection in the land sector
12/08/2022 - Land-based climate protection in line with the Paris Agreement can only succeed by overcoming global inequality, according to a new study by the Potsdam Institute for Climate Impact Research (PIK). This requires a shift towards healthier nutrition, less food waste and lower population growth. It is also necessary to put a price on greenhouse gas emissions from agriculture and forestry at the global level.
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“10 Must Dos” from biodiversity science in the run-up to COP15 UN World Conference on Nature
12/05/2022 - By 2030, 30 per cent of the planet's land and sea areas should be protected. All subsidies leading to the degradation of nature should be reallocated. These are two of the recommendations from the Leibniz Research Network Biodiversity's "10 Must Dos". The researchers are publishing their proposals on the occasion of the United Nations’ COP15 World Conference on Nature, which begins Wednesday in Montreal, Canada.
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Towards food security despite climate crisis and war
09/01/2022 - To secure the world's food supply, a shift toward more plant-based and less animal-based foods is needed, researchers explain in a 'Policy Brief' published today. The Russian war of aggression on Ukraine has triggered a shortage of some agricultural products as well as gas-produced mineral fertilizers. As a result, food prices are rising. At the same time, droughts and flash floods threaten crops worldwide as the climate crisis intensifies. The researchers show the connections - and make concrete recommendations on how a food turnaround could be initiated.
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Living in timber cities could avoid emissions – without using farmland for wood production
08/30/2022 - Housing a growing population in homes made out of wood instead of conventional steel and concrete could avoid more than 100 billion tons of emissions of the greenhouse gas CO2 until 2100, a new study by the Potsdam Institute for Climate Impact Research shows. These are about 10 percent of the remaining carbon budget for the 2°C climate target. Besides the harvest from natural forests, newly established timber plantations are required for supplying construction wood. While this does not interfere with food production, a loss of biodiversity may occur if not carefully managed, according to the scientists. The study is the first to analyze the impacts of a large-scale transition to timber cities on land use, land-use change emissions, and long-term carbon storage in harvested wood products.
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Healthy soil, healthy planet: Soil quality key for improved crop production and resilient climate
06/09/2022 - Healthy, high-quality soils lead to more robust and stable crop yields and are key for adapting to a changing climate, a new study finds. In China, appropriate efforts to improve soil quality may reduce the decline in crop production induced by climate change by 20%.
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How to avoid eating the world: From degrowth to a sustainable food system transformation
05/16/2022 - Proponents of degrowth have long argued that economic growth is detrimental to the environment. Now scientists show that concerning the food sector, curbing growth alone would not make our food system sustainable – but changing what we eat and putting a price on carbon would. In a first, a group led by the Potsdam Institute for Climate Impact Research (PIK) used a quantitative food and land system model to gauge the effects of degrowth and efficiency proposals on the food sector’s greenhouse gas emissions. They find that combining a dietary shift, emissions pricing, and international income transfers could make the world’s food system emissions-neutral by the end of the 21st century – providing at the same time a healthier nutrition for a growing world population.
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