Last year, I had the fantastic opportunity to spend three months at IIASA as part of the Young Scientists Summer Program (YSSP), to collaborate with the Ecosystems Services and Management (ESM) research program. During this very enriching experience, both intellectually, socially and culturally, I worked with Petr Havlik, David Leclère and Christian Folberth on modelling global rangelands and pasturelands under farming and climate scenarios. I also progressed on the development of a global animal stocking rate optimiser. The overall objective of this YSSP project, and more broadly of my PhD, is to assess to role of grazing systems in a sustainable food system.
However, my trip to IIASA was not my only adventure last year. Just before moving to Vienna, I received the great news that I was selected together with 77 other women to take part in a women in science and leadership program called Homeward Bound.
What would our world look like if women and men were equally represented, respected and valued at the leadership table? How might we manage our resources and our communities differently? How might we coordinate our response to global problems like food security and climate change?
Homeward Bound is a worldwide and world-class initiative that seeks to support and encourage women with scientific backgrounds into leadership roles, believing that diversity in leadership is key to addressing these complex and far-reaching issues. The program’s bold mission is to create a 1000-strong collective of women in science around the world over the next 10 years, with the enhanced leadership, strategic and visibility capacity to influence policy and decision-making for the benefit of the planet.
This year-long program culminated with an intensive three-week training course in Antarctica, a journey from which I have just come back. The voyage to Antarctica was incredible. We learnt intensively during this 24/7 floating conference, in the midst of majestic icebergs, very cute penguins, graceful whales and extraordinary women from various cultures and backgrounds, from PhD students to Nobel Laureates. I have returned full of hope for the planet, deeply inspired and emotionally energized. It was a truly unforgettable experience, one that will keep me reflecting for a lifetime.
Our days in Antarctica typically followed a similar routine – half of the day was dedicated to a landing (we visited Argentinian, Chinese, US and UK research stations) and the other half to classes and workshops. We discussed systemic gender issues and learnt about leadership styles, peer-coaching, the art of providing feedback, science communication, core personal values or what matter to us. The list goes on! We were also encouraged to practice reflective journaling. Regularly recording activities, situations and thoughts on paper is actually a very powerful technique for self-discovery, and personal and professional growth, as it helps us think in a critical and analytical way about our behaviors, values and emotions. We also spent quite some time developing our personal and professional strategies: what is our purpose as individual? What are our core values, aspirations and short- and long-term goals? From that, we developed a roadmap that could be executed as soon as we stepped off the ship. While I haven’t solved all my life’s mysteries, this activity gave me strong foundations to keep growing and be actively shaping my own life, rather than letting society do it for me.
In the evenings, we watched our film faculty sharing their tips with us on television, including primatologist Jane Goodall, world leading marine biologist Sylvia Earle, and former Executive Secretary of the UNFCC Christiana Figueres. We also had a collective art project called “Confluence: A Journey Homeward Bound,” which was underpinned by our inner journey of reflection, growth and transformation and our outer physical journey to Antarctica.
Both my stay at IIASA and my journey to Antarctica taught me a lot about the value of getting out of my comfort zone, exploring different leadership styles, and collaborating. I have also witnessed how visibility (visibility to ourselves, to understand who we are, and visibility to others, to let the world know we exist) helps to open up opportunities. The good news is that the beliefs we have about ourselves are just that – beliefs – and these beliefs can be changed.
My visibility to others has also increased notably in relation to my involvement in Homeward Bound and my recent award of the Queensland Women in STEM prize (https://qaafi.uq.edu.au/article/2018/03/uq-comes-out-top-2018-qld-women-stem-prize). This Australian annual prize, awarded by the Minister for Environment and Science Leeanne Enoch and Acting Chief Scientist Dr Christine Williams, aims to celebrate achievements of women who are making a difference in the fields of science, technology, engineering and maths. As a result, I got contacted by fascinating people from various fields of work, from researchers and teachers to entrepreneurs, start-ups, and industries. All these connections have broadened my approach to food security and global change and helped me shape my research vision, purpose and values.
When were in Antarctica, 750 million people were reached with our story. Why? Because, and may we never forget, the world believes in us – ‘us’ in its broadest sense: humans, scientists, women, etc. – in our skill, compassion and capability. While we are facing alarming global social, economic and environmental challenges, I believe that the many collaborations currently emerging all around the world that embrace diversity of knowledges, skills, processes and leadership styles will help us get closer to our development goals.
Homeward Bound is a 10-year long initiative. Find out more about the program and how to apply here: http://homewardboundprojects.com.au
By Linda See and Inian Moorthy, Ecosystems Services and Management Program
A recent estimate indicates that there are around 3 trillion trees on the Earth’s surface, of which around 15 billion are cut down each year . When we think of these vast numbers, we usually picture Amazonian rainforests or landscapes of evergreen trees surrounded by lakes and mountains. We rarely think of urban trees and the important role they play in making cities a healthier, greener place to live.
Raising awareness of the importance of urban forests for quality of life is part of the theme of this year’s United Nations International Day of Forests. At IIASA we are actively contributing to this awareness through an EU-funded project called LandSense. The aim of the project is to create a citizen-powered observatory for environmental monitoring of landscapes, particularly those that are changing and affecting citizen wellbeing, livelihoods, and biodiversity. Monitoring trees, and more specifically urban greenspaces, is a fundamental component of the LandSense project. Trees can reduce air pollution in cities by absorbing and filtering out the gases and particles that cause harm. Additionally, trees have a cooling effect on cities, which is increasingly important as temperatures rise due to climate change. In cities, the urban heat island effect results in higher temperatures during heat waves, often leading to health problems and even fatalities. Monitoring the presence of urban trees and fostering citizen access to urban greenspaces should therefore not be underestimated in terms of their contribution to promoting urban health, wellbeing, and sustainable cities.
With this urban focus in mind, the LandSense citizen observatory is engaging citizens in Vienna and Amsterdam in monitoring their local greenspaces, and in this way obtaining their perceptions about the quality and extent of these areas. A smart phone app developed at IIASA, guides participating citizens to specific locations in the city and asks them a series of questions, some of which relate to the quality of the trees in their area. This feedback can help city authorities to better understand the views of their citizens. The ultimate goal is to create dynamic and temporal maps of greenspace quality across the city, which can guide timely local decision making. The LandSense app will for example, directly contribute to STEP 2025, the urban development plan for Vienna.
This participatory approach not only gives citizens a better understanding of changing greenspaces in the city, but also empowers them to elicit action from city authorities in terms of improving poorly perceived greenspaces. By participating in this process, citizens are actively engaging in dialogue with the city authorities – getting their voices heard and influencing where future improvements will take place. Ultimately, by improving greenspaces and urban forests, citizens are helping to increase the wellbeing and quality of life of urban dwellers in the city.
We are currently testing the mobile app with students in Vienna and Amsterdam before launching broader citizen-based greenspace monitoring campaigns in the future. If you want to find out more, please visit the LandSense website for details or follow us on Twitter @LandSense.
 Crowther TW, Glick HB, Covey KR, et al (2015). Mapping tree density at a global scale. Nature 525:201–205. doi: 10.1038/nature14967
Note: 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.
Two things are distinctly noticeable when you meet Cornelius Hirsch—a cheerful smile that rarely leaves his face and the spark in his eyes as he talks about issues close to his heart. The range is quite broad though—from politics and economics to electronic music.
After finishing high school, Hirsch decided to travel and explore the world. This paid off quite well. It was during his travels, encompassing Hong Kong, New Zealand, and California, that Hirsch started taking a keen interest in economic and political systems. This sparked his curiosity and helped him decide that he wanted to take up economics for higher studies. Therefore, after completing his masters in agricultural economics, Hirsch applied for a position as a research associate at the Austrian Institute of Economic Research and enrolled in the PhD-program of the Vienna University of Economics and Business to study trade, globalization, and its impact on rural areas. Currently, he is looking at subsidies and tariffs for farmers and the agricultural sector at a global scale.
As part of the 2017 Young Scientists Summer Program at IIASA, Hirsch is digging a little deeper to analyze how foreign direct investments (FDI) in agricultural land operate. “Since 2000, the number of foreign land acquisitions have been growing—governmental or private players buy a lot of land in different countries to produce crops. I was interested in knowing why there are so many of these hotspots in the world— sub-Saharan Africa, Papua New Guinea, Indonesia—why are people investing in these areas?,” says Hirsch.
Increased food demand from a growing world population is leading to an increased rate of investment in agriculture in regions with large stretches of fertile land. That these regions are largely rain-fed make them even more attractive for investors as they save the cost of expensive irrigation services. In fact, Hirsch argues that “the term land-grabbing is misleading. It should actually be water-grabbing as water is the foremost deciding factor—even more important than simply land abundance.”
Some researchers have found an interesting contrast between FDI in traditional sectors, such as manufacturing, and the ones in agricultural land. While investors in the former look for stable institutions and good governmental efficiency, FDI in land deals seems to target regions with less stable institutions. This positive relationship between corruption and FDI is completely counterintuitive. Hirsch says that one reason could be that “sometimes weaker institutions are easier to get through when it comes to such vast amount of lands. A lot of times these deals and contracts are oral and have no written proof—the contracts are not transparent anyway.”
For example in South Sudan, the land and soil conditions seem to be so good that investors aren’t deterred despite conflicts due to corrupt practices or inefficient government agencies.
One area that often goes unnoticed is the violation of land rights of indigenous communities. If a government body decides to sell land or give out production licenses to investors for leasing the land without consulting the actual community, it is only much later that the affected community finds out that their land has been given away. Left with no land and hence no source of livelihood, these communities are forced to migrate to urban areas.
A strain of concern enters his voice as Hirsch talks about the impact. “Land as big as two times the area of Ecuador has been sold off in the past—but it accounts for a tiny percentage of the global production area.” With rising incomes and greater consumption of meat, a lot of land is used to produce animal feed crops. “This is a very inefficient way of using land,” he says.
During the summer program at IIASA, Hirsch is generating data that will help him look at these deals in detail and analyze the main factors that are taken into consideration before finalizing a land deal. At the moment he is only able to give an overview of land-grabbing at the global level. With more data on the location of the deals he can look at the factors that influence these decisions in the first place such as the proximity between the two countries involved in agricultural investments and the size of their economies.
While there is always huge media coverage when a scandal about these land acquisitions comes out in the open, Hirsch seems determined to dig deeper and uncover the dynamics involved.
About the researcher Cornelius Hirsch is a research associate at the Austrian Institute of Economics and Research (WIFO). At IIASA he is working under the supervision of Tamas Krisztin and Linda See in the Ecosystems Services and Management Program (ESM).
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.
Extractivism, a mode of economic growth currently practiced by many developing countries, is the phenomenon of extracting natural resources from the Earth to sell as raw materials on the world market. It is a central cause of many environmental problems, such as deforestation, loss of habitat and biodiversity, water, soil, and air pollution. Any study of these topics is therefore incomplete if it does not take this model of development into account.
Climate change is no exception, and it is my goal at IIASA to investigate the links between extractivism and climate change mitigation policies for Mexico. To start this search, it is relevant to ask whether the drivers of CO2 emissions might be different in countries that practice extractivism to those that do not. During my PhD, which examined the basic drivers of CO2 emissions in Mexico as a fossil fuel producer and exporter, I suggested that the answer is yes.
Even when there are as many causes of CO2 emissions as there are economic activities, CO2 emissions can be linked to four main drivers: population, GDP per person, the energy use per unit of GDP, and the CO2 emitted by each unit of energy consumed. The greater the value of these variables, and the faster their growth, the more CO2 emissions (all other things being equal). These four factors can then be incorporated into a model known as the Kaya identity, which aims to explain CO2 emissions at a global level.
For fossil fuel producers and exporters, these four elements of the Kaya identity may vary in idiosyncratic patterns across various periods, for example during booms and busts. There is a possible positive relationship between oil abundance and increased population growth, namely because of increased migration to oil production sites. For GDP per capita, a phenomenon known as the natural resource curse describes how production and export of fossil fuels can harm economic growth in the long term, although this debate is still not settled. Alongside this, various analyses have linked fossil fuel production with higher energy consumption, especially during boom times.
Lastly, a proposed carbon curse relates higher abundance of fossil fuels to higher “carbon intensity”—the amount of CO2 emissions per unit of GDP. The carbon curse may be a result of four mechanisms. First, the predominance of a fossil fuel production sector which emits a lot of CO2 itself. Second, crowding out effects in the energy generation sector, forming a barrier to newer renewable energy sources. Third, crowding out effects in other sectors of the economy—a phenomenon known as the “Dutch Disease” because when the Netherlands discovered its Groningen gas field in 1959 the economic boom that followed the gas exports resulted in a decline in manufacturing and agriculture. Finally, less investment in energy efficiency technologies and more subsidies for national fossil fuel consumption can also bring on the carbon curse.
It is therefore crucial to account for the links between extractivism and climate change related topics: for mitigation, but just as importantly for vulnerability and adaptation. If the past can be used to shape the future, a measure of the carbon curse could help national and international policymakers to determine how close an oil-extractive economy can get to being a low carbon economy.
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.
By Alvaro Silva Iribarrem, researcher in the IIASA Ecosystems Services and Management Program.
Restoration of degraded ecosystems is an exciting and relatively new way of looking into the conservation of natural capital—the world’s natural assets, including soil, air, water, and all living things. For one, the success of restoration is more readily verifiable than, for example, avoided degradation. Further, it increases the landscape’s resilience: natural areas can be placed around agricultural crops, increasing their yields by providing habitat for pollinators and therefore increasing pollination, protecting them from natural disasters, and improving the provision of important ecosystem services for human wellbeing.
These services include removing CO2 from the atmosphere (which contributes directly to climate change mitigation); ensuring that more sediment is filtered from the rivers (which reduces the risk of landslides and floods); and providing habitat for a large diversity of species. For scientists, it feels like being at the head of the counter-offensive: it is us, humans, finally doing something not only to slow our seemingly unstoppable degradation of the environment, but to actively start pushing it back.
Restoring an ecosystem to its original state can be an expensive endeavor, but tropical rainforests are very resilient. For example, even after centuries of extensive use of the Brazilian Atlantic Forest, which has been reduced to a tenth of its size, in many places it would still grow back to much of its original state in a manner of decades, if allowed to do so. For such ecosystems, natural regeneration represents an extraordinary opportunity to enable restoration at scales that would otherwise be cost-prohibitive.
In places like the Paraitinga watershed, in the countryside of São Paulo state, most of the original forest has long been cleared, and replaced, predominantly, by small dairy farms. After over a century of careless land use, large areas of the converted landscape has degraded to the point where yields are so low that farms are barely viable. The lack of forest cover has led to frequent floods. The worst of the recent ones, in 2010, destroyed most of the historical city of São Luiz do Paraitinga, with a population of 11 thousand inhabitants.
In a couple of recent publications, we made a comprehensive effort to include the natural regeneration of that watershed’s native forest as part of a bigger plan for more sustainable development of the region, one that would increase its resilience to this kind of disaster.
Starting from a landscape approach, we looked at the potential for grass growth in the region, and concluded that it was possible to accommodate all foreseeable future demands for cattle production and still make space for the restoration of a large area in the watershed. Sustainable intensification of current pasture is key to avoid the economic losses that could otherwise follow the land shortage caused by such a large-scale restoration. It would also help to gain the farmers’ acceptance. By producing more in a smaller area, they could let go of the degraded areas they currently use, allowing the native forest fragments nearby to spread.
In our regeneration scenario, we assume that around 24,000 hectares of pastureland that is presently abandoned in the watershed will be allowed to undergo natural regeneration in the next 20 years. This naturally occurring forest regrowth would sequester 6.2 million tons of CO2 from the atmosphere. Additionally, it would reduce sediment load into rivers by 570,000 tons annually, bringing water purification costs in the area down by 0.37 dollars per year per hectare restored. Finally we showed that restoration of even this relatively small area would be enough to significantly increase habitat availability for all species, particularly for those which travel between forest fragments.
To understand the difficulties farmers face in improving productivity, we conducted interviews and focus groups with them. We found that the tendency to keep to their old, low-producing, land-extensive ways, is less related to a resistance to change, and more to a lack of technical knowledge and the means to make the upfront investments needed to switch to a more productive system. Credit for investment is available and cheap in the country, but only a small number of farmers in the region risk taking it. Technical assistance is key to tap into these resources and enable the necessary improvement of the watershed’s production. The conditions for unlocking large-scale forest regrowth, not only in the Paraitinga watershed but in many similar landscapes in the country, are in place—they need only to be implemented properly.
By 2090, the area burned by forest fires in the European Union could increase by 200% because of climate change. However, preventive fires could keep that increase to below 50%. Improved firefighting response could provide additional protection against forest fires. These findings were the result of modeling work we did for the EU Mediation project on projecting future burned areas and adaptation options in Europe. When we talk about these results, people often want to know more about how our model works, what assumptions it makes, and how reliable it is.
Figure 1. The WildFire cLimate impacts and Adaptation Model (FLAM) schematic – estimation of expected burned area.
The model is complex: every link in the schematic shown above represents a specific mathematical formula. These formulas have been developed by many researchers who studied how wildfire occurrence is related to climate, population, and biomass available for burning. Their results have been aggregated into mathematical relations and functions attempting to replicate real processes. The model code runs through the scheme with daily weather inputs in order to calculate the potential for fire ignition, spread, and burned areas. The model transforms spatial and intertemporal inputs into expected burned areas for 25km squares across the entirety of Europe. These squares can be summed up into geographic regions, e.g. countries, as well as burned areas can be aggregated over a given time period, e.g. 10 years.
It took days for our colleague Mirco Migliavacca to run the model during his work at the Joint Research Center of the European Commission. In fact, the scheme depicted in Figure 1 shows only a small piece of a larger picture reflecting the Community Land Model with the integrated fire module (CLM-AB), which he used. CLM-AB calculates all inputs in the indicated fire module, based on modeling processes in the global vegetation system. To speed up the running times for the case study focused on the wildfires in Europe, my colleague Nikolay Khabarov developed a standalone version of the fire model by decoupling the fire module from CLM-AB. When I joined the study, we had also found alternatives for input data, e.g. IIASA’s Global Forest Database, and implemented additional procedures in order to create our wildfire climate impacts and adaptation model (FLAM).
We used the historical data from satellite observations in order to validate modeling results. At the beginning many numerical experiments in CLM and FLAM did not give satisfactory results – there was either overestimation or underestimation of modeled burned areas compared to those reported in available datasets. One day a purely mathematical insight happened. We realized that in the fire algorithm implemented in FLAM, there is a parameter that can be factorized, mathematically speaking. This parameter, a probability of extinguishing a fire in a pixel in one day, was constant for Europe and set to 0.5. It became obvious that this parameter should vary with respect to a region. Factorization of this variable gave a possibility to avoid routine calculations, and use it for calibrating the model over a historical period. This can be done analytically by solving a corresponding polynomial equation. Analytical findings allowed us to introduce an effective calibration procedure and at the same time to estimate a firefighting efficiency on a country level. Further, using the advice of our colleagues Anatoly Shvidenko and Dmitry Schepaschenko, we have introduced adaptation options in the model, for example prescribed burnings, which firefighters use to reduce the fuel availability and, consequently, potential of a major fire.
Prescribed burnings are one tool that can help prevent major wildfires. (cc) US Bureau of Land Management via Flickr
Once we had calibrated the model so that it adequately performed on the historical period (using historical climate data), we used climate scenarios to produce future projections. Currently, we are working on further improvements in modeling accuracy in annual burned areas by introducing additional regionally specific factors in the model. In the recent study published in the International Journal of Wildland Fire, we suggested improving the original model by modifying the fire probability function reflecting fuel moisture. This modification allows for a dramatic improvement of accuracy in modelled burned areas for a range of European countries.
Despite some success in modeling annual burned areas in Europe, we still have difficulties in predicting the extreme fires, in particular in some more arid and hence vulnerable regions such as Spain. However, we accept the challenge, because credible modeling results in terms of burned areas provide important information for assessing economic damages and CO2 emissions, due to climate and human activities. Our research has the potential to help society to realize these risks and undertake preventive measures. It also delivers an additional scientific value due to the fact, that fire risks must be included in forest management models.
I would like to thank all the study co-authors for their valuable contributions and efficient collaboration.
Reference Krasovskii, A., Khabarov, N., Migliavacca, M., Kraxner, F. and Obersteiner, M. (2016) Regional aspects of modelling burned areas in Europe. International Journal of Wildland Fire. http://dx.doi.org/10.1071/WF15012
Note: This article gives the views of the interviewee, and not the position of the Nexus blog, nor of the International Institute for Applied Systems Analysis.