Modeling ancient history to inform the future

By Marcus Thomson, IIASA alumnus and a researcher at the National Center for Ecological Analysis and Synthesis (NCEAS), the University of California, Santa Barbara

IIASA alumnus Marcus Thomson explains how what we have learnt about prehistoric farming cultures can be used to provide useful insights on human societal responses to climate change.

The climate of the western half of the North American continent, between the Rocky Mountains and the Pacific coastal region, is dry by European standards. The American Southwest, in particular, centered roughly on the intersection of the states of Colorado, New Mexico, Arizona, and Utah, is predominantly desert between high mountain plateaus. It is, and has always been, a challenging environment for farmers. Yet the prehistoric Southwest was home to complex maize-based agricultural societies. In fact, until the 19th century growth of industrial cities like New York, the Southwest contained ruins of the largest buildings north of Mexico — and these had been abandoned centuries before the Spanish arrived in the Americas.

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For more than a century, researchers have pored over data, from proxies of paleo-environmental change, to historiographies collected by explorers, to archaeology and computational models of human occupation, and produced a detailed picture of the socio-environmental, economic, and climatic conditions that could explain why these sites were abandoned. While details vary in fine-grained analyses of the various sub-groupings of peoples in the region, the big picture is one of societal transformation in adapting to climate change.

Also important is just how the climate changed during the period, because similar dynamics are expected to emerge in the future as a consequence of global warming. European historians point to a medieval era with generally warmer mean annual temperatures. In the Southwestern United States however, which is more sensitive to changes in drought than temperature, the period between roughly AD 850 to 1350 is known as the Medieval Climate Anomaly (MCA). The warm, dry MCA was followed by a long stretch of increased changes in the availability of water, known as the Little Ice Age (LIA). More frequent “warm droughts” at the end of the MCA, and generally increasing changes in water resources at the onset of the LIA, is thought to be a good analogy for future conditions in western North America.

When I had the good fortune to visit IIASA as a participant of the Young Scientists Summer Program (YSSP) in 2016, I worked with research scholars Juraj Balkovič and Tamás Krisztin to develop a model of ancient Fremont Native American maize. The Fremont were an ancient forager-farmer people who lived in the vicinity of modern Utah. We used a climate model reconstruction of the temperature and rainfall between AD 850 and 1450 to drive this maize crop model, and compared modeled crop yields against changes in radiocarbon-derived occupations – in other words, the information gathered from carbon dated artifacts that show that an area was occupied by a particular people – from a few archaeological areas in Utah.

© Galyna Andrushko | Dreamstime.com

Among our findings was that changes in local temperatures appeared to play a larger role in the lives, practices and habits of the people who lived there than changes in regional, long-term temperature conditions [1]. Later, while a researcher at IIASA myself, I returned to the subject with one of our coauthors, professor Glen MacDonald of the University of California, Los Angeles, using an expanded geographic range and a more sophisticated treatment of radiocarbon dated occupation likelihoods.

We used the climate model to reconstruct prehistoric maize growing season lengths and mean annual rainfall for Fremont sites. We found that the most populous and resilient Fremont communities were at sites with low-variability season lengths; and low populations coincided with, or followed, periods of variable season lengths. This study confirmed the important dependence on climate variability; and more importantly, our results are in line with others on modern smallholder farming contexts.

More details on our latest study [2] have just been published online in Environmental Research Letters (ERL). It will become part of an ERL special issue looking at societal resilience drawing lessons from the past 5000 years. Studies like these can give useful insights on human societal responses to climate change because these ancient civilizations are, in a sense, completed experiments with complex human-environmental systems. For decision makers, who must plan early to commit resources to offset the effects of future climate change on smallholder farmers in similarly drought-sensitive, marginally productive environments, these studies indicate that year-to-year climatic variability drives occupation change more than long-term temperature change.

References:

[1] Thomson MJ, Balkovič J, Krisztin T, & MacDonald GM (2019). Simulated impact of paleoclimate change on Fremont Native American maize farming in Utah, 850–1449 CE, using crop and climate models. Quaternary International, 507, pp.95-107 [pure.iiasa.ac.at/15472]

[2] Thomson MJ, & MacDonald GM (In press). Climate and growing season variability impacted the intensity and distribution of Fremont maize farmers during and after the Medieval Climate Anomaly based on a statistically downscaled climate model. Environmental Research Letters.

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.

How COVID-19 complicates the journey for climate migrants

By Lisa Thalheimer, 2020 IIASA Young Scientists Summer Program (YSSP) participant in the Risk and Resilience and World Population Programs

Lisa Thalheimer shares her journey in researching climate-related migration in the age of the COVID-19 pandemic and the importance of taking mental health issues into account in climate science and the policy realm.

© Raul Mellado Ortiz | Dreamstime.com

COVID-19 has changed our idea of normal. These unprecedented, stressful times affect us all – some of us more than others. Fear and anxiety over a new disease without any promise of a vaccine anytime soon, global economic downturn, along with feelings of loneliness and emotional exhaustion due to the lockdown, can leave us mentally exhausted. Rates of depression and addiction-related suicide are in fact already on the rise among young people like myself.

Now imagine you are advised to stay at home, but you cannot do so because climate change has turned your entire life upside down: your house is no longer there, you have lost your job, your family or friends – you are likely to feel unhinged. This is a reality for many migrants across the globe. It is inevitable that existing migration patterns will be shifted beyond disasters alone. Cascading impacts form the still unfolding pandemic could compound. No matter if you are a migrant yourself or not, agency and the choice over the decision whether to leave your house or not, and the luxury to socially distance could potentially not be an option with a systemic shock like COVID-19.

These changes in circumstances have also affected me as a young scientist. I would have been in Laxenburg, getting to know my YSSP peers and IIASA colleagues, but this year’s journey has been rewritten – courtesy of the COVID-19 pandemic.

I was living in Oxford in the UK when I came to realise that mental health is a game changer in the way I manage my day, make decisions, my ability to care for my partner who suffers from Amyotrophic Lateral Sclerosis (ALS), and making progress on my PhD thesis. Everything felt more difficult. I was overwhelmed. I wanted to understand why this is the case. My interest soon evolved into researching the links between mental health and my PhD topic of climate-related migration.

For the article “The hidden burden of pandemics, climate change and migration on mental health”, I teamed up with an epidemiologist who specialises in mental health at my old university home, the Earth Institute in New York City. This research experience was an eye-opener, both personally and scientifically.

In our article, we focused on the US, as it has been hit hardest by COVID-19 – in mid-August, the number of COVID-19 cases exceeded five million. On top of this, depression and anxiety are already prominent among Americans, as is costly impacts from disasters. Hurricanes cost the US around US$ 17 billion every year, but estimates show a higher probability of extremely damaging hurricane seasons with climate change. We may know the impact of climate change on assets and on physical health, but what about mental health impacts?

© Raggedstonedesign | Dreamstime.com

Although my coauthor and I come from different scientific disciplines, I soon came to realize that our scientific approach has a common denominator: systems thinking. Accounting for interconnections and cascading effects, our article shed light on different systems affected by COVID-19 and situations where mental health issues are likely to become increasingly prevalent in a changing climate. The article focuses on already vulnerable parts of the population, for example those who have been impacted by Hurricane Katrina or Hurricane Harvey – the latter of which has been made worse by climate change. The article illustrates how COVID-19 becomes a risk multiplier for climate migrants in three distinct case studies: key workers in New York as urban setting, seasonal migration dynamics, and disproportionate effects on black and Latino communities. Unrelenting effects include loss of employment, and a lower likelihood of being able to work from home or to have health insurance than white people.

A better understanding of the mental health-migration-climate change nexus can help absorb adverse mental health outcomes from COVID-19, which would otherwise compound. We however need to tackle systemic risks affecting mental health through synergies in research and policy, and an integrated intervention approach. Free mental health support for key workers through tele-therapy and mental health hotlines provide a practical way forward. Personally, I learned that climate migrants have been relentlessly resilient to systemic shocks. Nevertheless, with mental health issues, it becomes increasingly hard to maintain such resilience. With this commentary, I hope that mental health and interdisciplinary research finds its way in climate science and in the policy realm. We all need a clear mind to attain the Sustainable Development Goals.

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 https://www.un.org/sustainabledevelopment/climate-change/
[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.

Greening through schooling: How education influences pro-environmental behavior

By Roman Hoffmann, Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/ÖAW, and University of Vienna), Vienna Institute of Demography, Austrian Academy of Sciences, and the  Potsdam Institute for Climate Impact Research.

Taking action to combat climate change and its impacts is urgent and vital to achieve the Sustainable Development Goals. Although per capita emissions are still highest in high-income countries, several emerging low and middle-income countries have seen a rise in carbon dioxide and other greenhouse gas emissions in recent years. While much of that rise was due to increased (export-oriented) industrial activities, changing lifestyle, consumption, and mobility patterns also played a significant role. How people can be encouraged to behave in an environmentally friendly way is a fundamental question for climate change mitigation. Despite a call for a stronger emphasis on demand-side solutions in mitigation strategies, little is known about the determinants of pro-environmental behaviors of people from the developing world.

© Roman Hoffman | IIASA

In a study with IIASA researcher Raya Muttarak, which has recently been published in Environmental Research Letters, we found that education significantly contributes to increasing pro-environmental orientations and actions among low-income households in the Philippines. As an emerging lower-middle-income country, the Philippines are faced with severe environmental issues, such as pollution, deforestation, and environmental degradation. Already in the 1990s, public policy has responded to these challenges by developing several environmentally-focused learning initiatives and by making environmental education a fundamental pillar of the national school curriculum. Today, according to the World Value Survey, more than 73% of the population can identify with a person who gives importance to looking after the environment compared to 55% and 63% in the neighboring countries Thailand and Malaysia, respectively.

Figure 1 – Conceptual framework explaining the direct and indirect channels through which education influences environmental behavior. Note: The empirical design controls for the respondents’ pre-education background and indirect channels of influence allowing us to capture the direct effects of education on pro-environmental behaviors.

Based on original cross-sectional survey data, we found education to be positively related to pro-environmental behaviors such as recycling, proper garbage disposal, and planting trees. An additional year of schooling is estimated to increase the probability of carrying out climate-friendly actions by a substantial 3.3%. Going beyond previous research, we explored some of the underlying mechanisms through which education influences environmental behavior. . While knowledge and awareness raising are both important, it is found that education influences behavior mainly by increasing awareness about the anthropogenic causes of climate change, which may consequently affect the individual perception of self-efficacy in reducing human impacts on the environment. This is in line with the environmental psychology literature, which finds that poor understanding of the connection between human actions and climate change influences the perception of one’s ability to control and take action against it. People will become active only if the perceived likelihood of achieving a desired outcome is high enough. Education can hence play a vital role in promoting a better understanding of climate change and in raising awareness about the impacts of human activities.

Figure 2 – Map of study areas with locations of respondents’ homes. The study areas encompassed both more urban and rural areas located in Rizal province towards the East of the National Capital Region

In line with recent efforts of the international community to promote education for sustainable development, our study provides solid empirical evidence confirming the important role of education in climate change mitigation efforts. Investments in education can make an important contribution in raising awareness and ultimately in promoting green behavior helping to reduce the human impacts on the global climate system. In this regard, while it is important to provide learners with the necessary tools and capabilities to undertake pro-environmental actions, it is also key to raise their perceived self-efficacy. Education should thus not only focus on the transfer of knowledge and information, but also highlight the importance of the individual contribution in mitigating the harmful consequences of global environmental change.

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.

Towards a step-change for dealing with critical risks ‘beyond’ adaptation and the Loss and Damage policy debate.

Making use of mutuality-solidarity-accountability-transparency principles

By Teresa M. Deubelli, researcher in the IIASA Risk and Resilience Program and Reinhard Mechler, Deputy Program Director IIASA Risk and Resilience Program

The Warsaw International Mechanism (WIM) for Loss and Damage and its ongoing review were hot topics at COP25. Hopes for a step-change on the issue of finance to scale up action and support have not been translated into action. Negotiating Parties remain divided over the way forward and the question of what kind of finance and for whom. We suggest to build on principles of risk governance, including insurance, and international cooperation  – mutuality, solidarity, accountability and transparency – and to combine these in novel ways in order to upscale action on both averting and minimizing as well as addressing loss and damage under the WIM in a manner that truly shows responsibility for responding to the climate crisis.

COP25 Madrid, Spain © Reinhard Mechler | IIASA

 Why do we need a step-change on Loss and Damage finance?

Hard limits to adaptation are creating situations beyond adaptation; think for example of communities fleeing desertification or sea-level rise that can only retreat so far. The WIM has made substantial strides on its objectives to advance knowledge and exchange since its creation, but now the time is ripe to take the necessary steps to also move forward on addressing loss and damage from climate change.

So far, this third WIM priority has mostly been addressed through insurance approaches, such as the Fiji Clearing House. While there is value in scaling up risk transfer options, insurance comes with drawbacks: insurance premium costs often exceed financial capacities of vulnerable groups or may result in a false sense of protection that undermines further resilience-building action. Additionally, risk transfer options remain focused on sudden onset events.

Loss and damage from climate change is not just linked to sudden events; sea-level rise, desertification, and glacial melting take years to unfold, but once these tipping points are reached, recovery and reconstruction, and thus the typical logic of humanitarian assistance, are out of the question. As the climate crisis spirals forward tipping points may be reached sooner than expected, also challenging the sustainability of resilience building actions within the framework of development cooperation

How to make a principled case to generate support for addressing loss and damage?

Most vulnerable countries agree that the WIM needs to advance on enhancing action and support for addressing loss and damage from climate change. Discussions at COP25 focused heavily on the issue of mobilizing finance for addressing loss and damage, but little headway was made, as views on the exact modalities of finance and its access differ vastly amongst Parties. Unfortunately, this means that the ongoing WIM review faces a certain risk of replicating the stalemate that characterised the Paris Agreement negotiations on the question of liability, when notions of compensatory justice were crossed out from Article 8 at the request of several developed, high emitting countries.

In order to propel the discourse forward in future rounds of climate talks and in the WIM review, We suggest to build on principles of risk governance, including insurance, and  international cooperation  – mutuality, solidarity, accountability and transparency – and to combine these in novel ways in order to upscale action on both averting and minimizing as well as addressing losses and damages under the WIM:

  • As the underlying insurance principle, mutuality is found in risk pooling and sharing – several parties pool funding to mobilize finance for offsetting losses in times of crisis, essentially spreading out and mutualizing risks across participants.
  • Solidarity describes the shared responsibility for supporting others in times of hardship. As a principle it underpins development cooperation and humanitarian assistance and is at the heart of the Agenda 2030.
  • Accountability links actions with outcomes in a mutually responsible relationship and is motivated by a perceived ethical or legal obligation for supporting each other in addressing climate-attributed loss and damage.
  • As a transversal principle, transparency adds itself as a critical enabler of a finance architecture that expands the WIM to support those who are suffering loss and damage in ways that cannot be addressed through business-as-usual.

All principles lend themselves to the WIM as a ground for advancing on its priority to enhance action and support for addressing loss and damage from climate change, but also offer inspiration for thinking out novel ways to advance further.

What could this mean concretely?

These deliberations are not merely theoretical in nature but are seeing attention. For example through the further development of the (ARC) pool, a regional drought pool established in 2012 as a specialised agency of the African Union to help member states improve their planning, preparation and response capacities. Disbursements from the pool support participating governments’ drought relief efforts, with requirements on how these are used (transparency and accountability).

Initial donor funding (solidarity) and ARC member annual premium payments (mutuality) capitalise the ARC. The pool is currently preparing for the launch of an additional capitalization mechanism, the Extreme Climate Facility (ARC-XCF). This would issue climate catastrophe bonds, resulting in pay-outs whenever the index tracking frequency and magnitude of droughts and extreme temperature exceeds a predefined threshold (transparency). While using the capital markets to access additional funding needs, accountability for climate change is factored in to some extent through the international support divested to setting up the mechanism.

The ARC-XCF is one way to address loss and damage and offers practical inspiration for setting up facilities for addressing loss and damage under the WIM. Especially where hard limits are pushed beyond adaptation and traditional insurance is no longer feasible, drawing on the experience from such risk pooling facilities can be useful input for setting up a specific facility under the WIM that supports those at the frontiers of climate change.

In doing so, it will be important to keep the principles of international cooperation and insurance – mutuality, solidarity, accountability and transparency – in mind to equitably address loss and damage, especially where risks are increasingly intolerable and beyond adaptation.

References:

Deubelli, T.  and Mechler, R. (2019). Finance for Loss & Damage: Towards a comprehensive principled approach, unpublished.

Linnerooth-Bayer, J. Surminski, S., Bouwer, L., Noy, I., Mechler, R., McQuistan, C. (2018). Insurance as a Response to Loss and Damage? In: Mechler R, Bouwer L, Schinko T, Surminski S, Linnerooth-Bayer J (2018). Loss and Damage from climate change. Concepts, methods and policy options. Springer, Cham: 483-512

Mechler R, Bouwer L, Schinko T, Surminski S, Linnerooth-Bayer J (2018). Loss and Damage from climate change. Concepts, methods and policy options. Springer, Cham.

This blog is reposted from a Flood Resilience Portal blog.

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.

Understanding climate change as an everything issue

Award-winning climate communicator Katharine Hayhoe, an atmospheric scientist, professor of political science at Texas Tech University, and director of the Climate Center, discusses the importance of effective science communication in overcoming barriers to public acceptance of climate change in a recent interview with Rachel Potter, IIASA communications officer.

© Chris.Soldt | Boston College.MTS.Photography

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

I study what climate change means to people, in the places where we live: how it is affecting our water supply, our health, our air quality, the integrity of our infrastructure, and other human and natural systems. Often when people think about climate change they think about polar bears or people who are living on low-lying islands in the South Pacific. I bring climate change down from the global scale to the local level because when we understand that it is an ‘everything issue’, that’s when we understand that we need to act.

Q: You have been widely recognized as a remarkable communicator. What do you see as key to effective science communication?

I believe effective communication begins with connecting and identifying shared values, and ends with talking about solutions. With climate change, sometimes people are overt in their opposition by outright saying the science isn’t real. More often however, it is passive opposition where people feel the problem is too big and there is nothing they can do to fix it. We need to present people with solutions that are practical and viable – in other words, actions that they can engage in.

Q: Why is science communication important?

Science communication explains how the world works. Today we are conducting an unprecedented experiment with our planet, the only one we have. Understanding this is one of the most important things anyone can do as a human being living on Earth.

Q: Can you briefly outline what you see as trends in public and political opinion with regard to human-induced climate change?

Our world is becoming increasingly polarized and we are dividing into tribes. It is happening with many issues and in many places around the world. When the world is changing so quickly, many of us feel uncomfortable with the rate of change, so we retreat to a more tribalized, divided society where we feel comfortable. But by doing so, we focus on the tiny fraction of what divides us rather than the vast preponderance of what unites us, because it makes us feel more secure to do so.

Climate change is a casualty of this fracturing, tribalism, and polarization that is happening – most notably in the US because there are only two political parties, so the tribalization there is much more obvious. In the US, the best predictor of whether people agree with the facts that: climate is changing, humans are responsible, and the impacts are serious, is not how much they know about science, it’s simply where they fall on the political spectrum. This politicization of science is also happening in the UK, Austria, across Europe, Canada, Australia, and Brazil.

© IIASA Katherine Hayhoe with members of the IIASA Women in Science Club

Q: How can this polarization and the barriers to dealing with climate change be challenged?

Climate change is a human issue – it doesn’t care if we are liberal or conservative, rich or poor, although the poor are being more affected than the rich. It affects all of us and almost everything we care about. For that reason, we must emphasize what unites us rather than what divides us. We need to challenge the idea that the solutions to climate change pose a bigger threat to our wellbeing, our comfort, the quality of our lives, our identity and who we are, than the impacts.

We must expose the myths that underlie inaction around climate change and examine them in an objective way. Will it really ruin our economy to fix climate change? Will it take us back to the Stone Age? If we don’t tackle the myths directly, they will continue to thrive in our sub-conscious. For example, in Canada there is an idea that a carbon tax will destroy the economy. I like to point out that there were four provinces in Canada that had a price on carbon before it became a federal policy, and those four provinces have led the country in terms of economic growth and output.

Q: What part do you see IIASA playing in being able to build bridges between countries across political divides? 

IIASA stands in a key position at a pivotal time. It is a truly international organization in terms of its mandate, structure, governance, and the people that work here. Climate change is a global problem and IIASA is a global institution that can offer both big-picture and regionally-specific insights into climate impacts and solutions.

Katharine Hayhoe visited IIASA on 4 October 2019 to give a lecture titled, Barriers to Public Acceptance of Climate Science, Impacts, and Solutions, to IIASA researchers and to meet with the IIASA Women in Science Club. 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.

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