The Cercedilla Manifesto: Advocating for more environmentally and socially sustainable research meetings

By Raquel Guimaraes, postdoc in the IIASA World Population Program, and Debbora Leip, an alumnus of the IIASA Advanced Systems Analysis Program

IIASA researcher Raquel Guimaraes and former research assistant Debbora Leip encourage the support of the Cercedilla Manifesto, arguing that it is high time for the scientific community to take responsibility and set an example by making research meetings more sustainable.

© La Fabrika Pixel S.l. |

The research community widely agrees that strong action is needed to counteract the climate crisis that is currently taking place. Nevertheless, scientists regularly meet at conferences that are often far from sustainable. Problems range from participants flying to attend events, to unnecessary gadgets and gifts handed out at the meetings, and unsustainable catering at conference dinners. In light of the current public debate on environmental and social sustainability, we call on scientists to take a leading role in changing their work practices towards more sustainable habits, starting with research meetings.

In April 2020, Alberto Sanz-Cobena and several colleagues published an article titled Research meetings must be more sustainable in Nature Foods. They presented the Cercedilla Manifesto with 12 sustainability decisions as guidelines for organizers and attendees of research meetings (see Figure 1). The starting point of the manifesto is to question whether a physical meeting is indeed necessary. If organizers decide that it is, there is still the question of whether each single attendee really needs to physically join the conference. Often, remote participation can be equally efficient if a technical solution is provided by the organizers. Furthermore, if a decision to conduct a physical meeting is taken, organizers have to consider what food will be served.

The authors state that excessive amounts of food and food waste are very common at meetings, which makes a change of mindset towards better food management very important, not only for climate change, but for many other environmental threats. In our opinion, this point has so far been neglected in public debate.

Figure 1: Twelve points to enhance the sustainability of research meetings as proposed by the Cercedilla Manifesto (Sanz-Cobena et al., 2020), which is based on a co-creative approach to the production, provision, and consumption of food and services at scientific meetings, and is inspired by Sustainable Development Goal 12 (See also:

Given the urgency for climate change action and the need for individuals to play an active role – with research scientists taking the lead – we assert that it is urgent to start changing our habits and setting an example regarding environmental and social sustainability in research meetings. Indeed, many of us take it for granted that to meet and discuss our work, we must travel. Most attendees do not even question that unnecessary gadgets and gifts are distributed or that opulent dinners are provided.

We hope that the Cercedilla Manifesto will raise awareness about the fact that good scientific output often does not require a physical meeting by providing a conceptual framework for change in this regard. If we support the manifesto, we stand a chance to lower the barrier to dare deviating from currently applied practices. The 12-sustainability decisions were designed by specialists to serve as a reference for anybody who wishes to organize/attend a sustainable meeting.

In the current situation brought about by the global COVID-19 crisis, almost everybody has experienced that remote conferences are not only possible, but also efficient – sometimes even more so than a physical meeting would have been. First, it saves time in terms of travel. Second, it may be more inclusive by allowing people to attend, who would not have had the opportunity to join otherwise, be it for financial, family, or other reasons. In addition, remote meetings provide additional features, like a chat function that could add another discussion layer.

Of course, remote meetings also have their limitations: informal in-person meetings during coffee breaks, for example, can enhance networking and free discussions, and sometimes contribute significantly to a meeting’s outcome. Virtual meetings also face several other challenges, such as participation by attendees from different time zones, or poor internet connections. These issues could however easily be addressed by spreading the meeting over more days, in such a way that the need for attendance outside of acceptable time slots is minimized, and by investing saved traveling costs into better equipment.

Let us learn from this experience and not go ‘back to normal’ after the COVID-19 crisis. We should take this as an opportunity to speed up change and tackle the other global crisis of climate change!

You can find the petition at!cercedillamanifesto. We encourage you to share and support this initiative.


Sanz-Cobena A, Alessandrini R, Bodirsky BL, Springmann M, Aguilera E, Amon B, Bartolini F, Geupel M, et al. (2020). Research meetings must be more sustainable. Nature Food 1, 187–189.  DOI: 10.1038/s43016-020-0065-2

Frisch B, & Greene C (2020). What it takes to run a great virtual meeting. Harvard Business Review.

Note: This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

Climate change or behavior change?

By Leila Niamir, post-doctoral researcher at the Mercator Research Institute on Global Commons and Climate Change (MCC), Germany and IIASA YSSP alumna.

© Cienpies Design Illustrations | Dreamstime


Weather patterns and events are changing and becoming more extreme, sea levels are rising, and greenhouse gas emissions are now at their highest levels in history[1]. Climate change is affecting every individual in every city on every continent. It imposes adverse impact on people, communities, and countries, disrupting regional and national economies.

Climate change mitigation refers to efforts to reduce or prevent emissions of greenhouse gases to limit the magnitude of long-term climate change. Human consumption, in combination with a growing population, contributes to climate change by increasing the rate of greenhouse gas emissions. Over the last decade, instigated by the Paris Agreement, the efforts to limit global warming have been expanding. Significant attention is being devoted to new energy technologies on both the production and consumption sides, however, changes in individual behavior and management practices as part of the mitigation strategy are often neglected[2]. This might derive from the complex nature of human which makes explaining and affecting human behavior a difficult task. As a result, quantitative tools to assess household emissions, considering the diversity of behaviors and a variety of psychological and social factors influencing them beyond purely economic considerations, are scarce. Policymakers would benefit from reliable decision supporting tools that explore the interaction of economic decision-making and behavioral heterogeneity in households behavioral and lifestyle changes, when testing climate mitigation policies (e.g. carbon pricing, subsidies)[3].

To address this issue, during my PhD research I studied the potential of behavioral changes among heterogeneous households regarding energy use and their role in mitigating climate change. By designing and conducting comprehensive household surveys, it was explored how individuals choose to change their energy behaviour and what factors trigger or inhibit these choices[4]. Decision support tools are designed to study large-scale regional effects of individual actions, and to explore how they may change over time and space. The model explicitly treats behavioral triggers and barriers at the individual level, assuming that energy use decision making is a multi-stage process. This theoretically and empirically grounded simulation model offers policymakers ways to explore various policy portfolios by running diverse micro and macro scenarios.

This model was further developed during my collaboration with the IIASA the Young Scientists Summer Program (YSSP), to estimate macro impacts of individuals’ energy behavioral changes on carbon emissions[5]. Within this research, we illustrate that individual energy behavior, especially when amplified through social context, shapes energy demand and, consequently, carbon emissions. Our results show that residential energy demand is strongly linked to personal and social norms. When assessing the cumulative impacts of these behavioral processes, we quantify individual and combined effects of social dynamics and of carbon pricing on individual energy efficiency and on the aggregated regional energy demand and emissions.

In summary, mitigating climate change requires massive worldwide efforts and strong involvement of regions, cities, businesses and individuals, in addition to the commitments at the national levels. We should always keep in mind that every single behavior matters. In the transition to a sustainable and resilient society, we –as individuals- are more than just consumers.

Note: This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

[1] Climate Action– United Nations Sustainable Development Goals
[2] Creutzig, F., et al. (2018). Towards demand-side solutions for mitigating climate change. Nature Climate Change 8, 268-271; Grubler, A., et al. (2018). A low energy demand scenario for meeting the 1.5 degrees C target and sustainable development goals without negative emission technologies. Nature Energy 3, 515-527; Creutzig, F., et al. (2016). Beyond Technology: Demand-Side Solutions for Climate Change Mitigation. Annual Review of Environment and Resources, Vol 41 41, 173-198
[3] Niamir, L. (2019). Behavioural Climate Change Mitigation: from individual energy choices to demand-side potential (University of Twente); Creutzig, F., et al. (2018). Towards demand-side solutions for mitigating climate change. Nature Climate Change 8, 268-271; Niamir, L., et al. (2018). Transition to low-carbon economy: Assessing cumulative impacts of individual behavioural changes. Energy Policy, 118; Stern N. Economics: Current climate models are grossly misleading. Nature 530(7591):407–9.
[4] Niamir, L. et al. (2020). Demand-side solutions for climate mitigation: Bottom-up drivers of household energy behaviour change in the Netherlands and Spain. Energy Research & Social Science, 62, 101356.
[5] The results of this collaboration was presented at Impacts World 2017 and won the best prize, and also published at Climatic Change Journal.

Cooperation needed! The case of drought management in Austria

By Marlene Palka, research assistant in the IIASA Risk and Resilience Program

Marlene Palka discusses the work done by the IIASA FARM project, which has been investigating drought risk management in Austria for the past three years.

Future climate projections forecast an increase in both the frequency and severity of droughts, with the agricultural sector in particular being vulnerable to such extreme weather events. In contrast to most other climatic extremes, droughts can hit larger regions and often for extended periods – up to several months or even years. Like many other countries, Austria has been and is expected to be increasingly affected, making it necessary to devise a management strategy to mitigate drought damages and tackle related problems. The FARM project – a three year project financed by the Austrian Climate Research Program and run by the IIASA Risk and Resilience and Ecosystems Services and Management programs – kicked off in 2017 and has been investigating agricultural drought risk management both in a broad European context, and more specifically in Austria.

Young sunflowers on dry field © Werner Münzker |

Austria represents a good case study for agricultural drought risk management. Despite the agricultural sector’s rather small contribution to the country’s economic performance, it still has value and represents an important part of the country’s historical and cultural tradition. Around 80% of Austria’s total land area is used for agricultural and forestry activities. Equally important is its contribution to the preservation of landscapes, which is invaluable for many other sectors including tourism.

Globally, agricultural insurance is a widely used risk management instrument that is often heavily subsidized. Apart from the fact that the concept is increasingly being supported by European policymakers – the intention being that insurance should play a more prominent role in managing agricultural production risk – more and more voices from other sectors are calling for holistic management approaches in agriculture with the overall aim of increasing the resilience of the system.

There is a well-established mutual agricultural insurance company in Austria, which has high insurance penetration rates of up to 75% for arable land, and comparably high subsidies of up to 55% of insurance premiums. It is also encouraging to note that recent policy decisions support the timeliness of drought risk: in 2013, the Austrian government paid EUR 36 million in drought compensation to grassland farmers and in 2016, premium subsidies of 50% were expanded to other insurance products, including drought, while ad-hoc compensation due to drought was officially eliminated. In 2018, the subsidy rate was further increased to 55%. In light of these prospects, we investigated the management option space of the Austrian agricultural sector as part of the FARM project.

The 2018 Organisation for Economic Co-operation and Development (OECD) report on monitoring and evaluation of agricultural policies claims that efficient (drought) risk management in agriculture must consider the interactions and trade-offs between different on-farm measures, activities of the private sector, and government policies. The report further argues that holistic approaches on all management levels will be vital to the success of any agricultural management strategy.

In the course of our work, we found that agricultural drought risk management in Austria lacks decision making across levels. Although there is a range of drought management measures available at different levels, cooperation that includes farms, public and private businesses, and policy institutions is often missing. In addition, measures to primarily and exclusively deal with drought, such as insurance and irrigation, are not only limited, but (as we found) are also less frequently implemented.

As far as insurance is concerned, products are still being developed, and penetration rates are currently low. Drought risk is also highly uncertain, making it almost impossible to offer extensive drought insurance products. Irrigation is perceived as the most obvious drought management measure among non-agronomists. Simply increasing irrigation to deal with the consequences of drought could however lead to increased water demand at times when water is already in short supply, while also incurring tremendous financial and labor costs and additional stress to farmers. With that said, a large number of agricultural practices may also holistically prevent, cope with, or mitigate droughts. For example, reduced soil management practices are low in operating costs and prevent surface run-off, while simultaneously maintaining a soil structure that facilitates increased water holding capacity. Market futures might also stabilize farm income and therefore allow for future planning such as the purchase of irrigation equipment.

A workshop we held with experts from the Austrian agricultural sector further highlighted this gap. Thinking (not even yet acting) beyond the personal field of action was rare. The results of a survey we conducted showed that farmers were experiencing feelings of helplessness regarding their ability to manage the negative effects of droughts and other climatic extremes despite the implementation of a broad range of management solutions. One way to explain this could be a lack of cooperation across different management levels, meaning that existing efforts – although elaborate and well-proven – potentially reach their limit of effectiveness sooner rather than later.

Due to the more complex effects of any indirect/holistic drought management measure, we need tailored policies that take potential interdependencies and trade-offs into account. With evidence from the FARM project, my colleagues and I would like to emphasize an integrated risk management approach, not only at farm level but also in all relevant agencies of the agricultural sector in an economy. This will help to secure future production and minimize the need for additional public financial resources. Our findings not only contribute to ongoing high-level discussions, but also underpin the resulting claim for more holistic (drought) risk management with bottom-up data from our stakeholder work.

Note: This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

Enhancing urban resilience through nature-based solutions

By Luiza Toledo, IIASA Science Communication Fellow 2019

2019 YSSP participant Regina Buono investigates how the law can support or impede the use of nature-based solutions and help facilitate adaptation to climate change.

Recognizing the need for a systemic change is the first step to overcoming environmental challenges like climate change. In theory, governance systems can be designed and arranged to facilitate and embrace adaptation to climate change. Developing a legal framework that supports such an adaptation is, however, a big challenge. Learning how to manage the environmental crisis we currently find ourselves in while still being able to grow economically further complicates matters. According to Regina Buono, a participant in this year’s IIASA Young Scientist Summer Program (YSSP), nature-based solutions could be an alternative option that offers a multitude of benefits in terms of how this dual goal of economic growth and sustainability can be achieved. Buono’s research will contribute to IIASA as a partner in the EU Horizon 2020 project, PHUSICOS, which is demonstrating how nature-based solutions can reduce the risk of extreme weather events in rural mountain landscapes.

Outdoor green living wall, vertical garden on modern office building | © Josefkubes |

Nature-based solutions are actions to protect, manage, or restore natural ecosystems that address societal challenges, such as water security, pollution, or natural disasters – sometimes simultaneously. These solutions take advantage of the system processes found in nature – such as the water regulation function of wetlands, the allowance of natural space in floodplains to buffer flooding impacts, water storage in recharged aquifers, or carbon storage in prairies – to tackle environmental problems. This concept is now widely used to reframe policy debates on biodiversity conservation, climate change adaptation and mitigation strategies, urban resilience, as well as the sustainable use of natural resources.

As part of her research, Buono is exploring how the law can support or impede the use of nature-based solutions and considering how we can make legal systems more adaptive so they can help facilitate societal adaptation to a more uncertain world under ongoing and future climate change.

“My research is about using the law as a tool that works for us, rather than one that, because of its historic interest in stability, gets in the way,” she says.

Regina Buono, YSSP participant. | © Buono

Buono started her career as a lawyer based in the US. In her first job she was assigned to work with water issues and according to her, it was “love at first sight”. Following that first assignment, she continued to work on finding market-based solutions for issues related to endangered species. She decided to pursue a PhD in public policy in 2016, and soon after was asked to join the external advisory board to the Nature Insurance Value: Assessment and Demonstration (NAIAD) project in Europe. While attending the first meeting, she realized that there were no lawyers or legal scholars among the project researchers. As a lawyer, she could see that there was a gap in understanding how law and regulations would impact the uptake, development, and proliferation of nature-based solutions.

Working with NAIAD, she developed her PhD dissertation to address this gap and advance understanding around the role of the law in nature-based solutions, both in terms of governance in implementation and practice and the potential for governance innovation that better supports and promotes future adaptation.

“My YSSP project here at IIASA focuses on the city of Valladolid, Spain, and examines the legal context around the implementation of a collection of nature-based solution projects. I am trying to draw insights from these that could perhaps also be applied to other cases,” she explains.

Buono is doing a critical qualitative study that integrates analyses of interviews and policy documents using NVivo, a qualitative data analysis computer software package specifically designed to work with very rich text-based and/or multimedia information, together with legal analysis. She says that there is still a lot of work to be done to adapt to climate change and an interdisciplinary cross-sector effort will be necessary.

The preliminary results from her YSSP research point to a number of constraints and facilitating factors related to law and regulation. She says that the lack of explicit legal authorization for nature-based solutions that she identified in her study, strict water quality regulations, and bureaucratic hurdles could be some of the factors that constrain the implementation of nature-based solutions. However, flexibility in the law and a polycentric governance structure was identified as facilitating factors that encourage local entities to opt for nature-based solutions.

Buono hopes that her research will help decision makers to assess and address legal components that guide, structure, or impede the use of nature-based solutions, and to consider how the law could be evolved to create a more enabling environment for more adaptive governance arrangements that would better support nature-based solutions.

“Our policies and infrastructure are going to have to change to be able to deal with the impacts that we are already experiencing. Nature-based solutions and a shift toward adaptive governance could help us navigate more gracefully in these important transitions,” she concludes.

Note: This article gives the views of the author, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.

The Earth is our spaceship: Perspectives from space

Rachel Potter, IIASA communications officer, interviews retired NASA Astronaut and Principal of AstroPlanetview LLC, Sandra H Magnus on insights about our world she has gained from her time living on the International Space Station.

©NASA Photo / Houston Chronicle, Smiley N. Pool

Q: Can you tell us a bit about your specific areas of research as a scientist? 

A: My PhD was on a new material system being investigated for thermionic cathodes, which are used as electron sources for satellite communication systems. My research was an effort to look at the system methodically and from a science viewpoint to understand physically what was going on in order to inform the design of more robust devices. If you can operate the cathode at a lower temperature, that means a longer life for it, which is a good thing for satellites! Post-PhD I was however admitted to the Astronaut Office and that, quite frankly, pretty much put an end to my career as a researcher, or at least as a principal investigator (PI). The work I did on the International Space Station was at the direction of other PIs who had proposed, and been granted, experiments in space.

Q: Your career has spanned a wide range of settings from the NASA Astronaut Corps to your current role as Principal of AstroPlanetview LLC – what is the common thread or focus that has run through your work? 

A: Following my curiosity and looking for challenges. I always want to be challenged and feel that I am learning new things. If I feel that I have become stagnant, I start looking for how to change that situation.

Q: What have been the personal highlights of your career? 

A: Clearly flying in space! I feel very fortunate, however, to have been in the Astronaut Office during the era of the space station. I enjoyed very much working in a collaborative, multicultural, international environment where we had a big team of people from around the world working on something that benefits the planet.

Q: What are the greatest lessons you have learned from seeing the Earth from space?

A: I was so excited to FINALLY be going into space after hoping to do just that for over 20 years. The Earth is our spaceship – a closed system in which everything on the planet affects, and is connected to everything else on the planet. An action somewhere means a reaction somewhere else, even if it is not always first order (and usually it is not). Also, the planet looks incredibly beautiful and very fragile – we have to take care of it!

© NASA STS-126 Shuttle Mission full crew photo (5 March 2008), Sandra H Magnus far left.

Q: What do you see as key to solving the complex problems the Earth faces in terms of sustainability? 

A: Having the will to do it as a community. If you have the will, commitment and a clear, agreed-to, articulation of the common goal, we can pretty much accomplish anything we want to.

Q: How do you see IIASA being able to build bridges between countries across political divides? 

A: Well, when we want to solve problems, it really is all about relationships at the end of the day. It is easy to demonize or keep your distance from abstract ideas or the ubiquitous “They” but when you meet people, understand them as individuals and the context of their backgrounds that lead them to have different views and approaches to life and solving problems, it is much easier to visualize how you can work together to tackle issues. The relationships are the bridges.

Q: What advice would you give to young women researchers wanting to make it into Aeronautics? 

A: To young women (and young men, too, really) I would say, “If you have a dream to go do something, then you owe it to yourself to go for it and try it!” Never let anyone else define who you are or tell you what you can or cannot do – believe in yourself and give it a try. Maybe you will make it, maybe you will not, but it will be on your own terms, with you pushing yourself and regardless of the outcome you will have a deeper understanding of yourself, and that is always a good thing.

Sandra H Magnus visited IIASA on 21 June 2019 in cooperation with the US  Embassy Vienna, to give a lecture entitled “Perspectives from Space”  to IIASA staff and this year’s participants of the IIASA Young Scientists Summer Program. IIASA has a worldwide network of collaborators who contribute to research by collecting, processing, and evaluating local and regional data that are integrated into IIASA models. The institute has 819 research partner institutions in member countries and works with research funders, academic institutions, policymakers, and individual researchers in national member organizations.

This article gives the views of the authors, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.