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1. Investigating Land Use Changes with Development of the Informal Road Networks: Case-Study in Siberia

   Kuklina, V.; Petrov, A. N.; Shiklomanov, N. I.; Yu, Q.; Bogdanov, V. (December 2019, American Geophysical Union, Fall Meeting 2019)

   null (Ed.)

   While researchers of social-ecological systems acknowledge existence of formal and informal institutions affecting social-ecological governance, the role of informal sector in the land use change remains understudied. Moreover, existing studies of informal land use are focused mostly on urban areas, such as informal settlements. We argue that the remote regions would be another important area for inquiries. Informal, e.g. unobserved by official records, land use changes there are related to high-speed dynamics of resource extraction projects and location mostly in the regions of traditional land use practices of indigenous people. In particular, we focus on informal roads, which in the Arctic and Subarctic remote regions often remain understudied due to their small size, chaotic, temporal or even seasonal nature, private ownership or traditional subsistence functions. Despite their absence on official maps, they have significant social, economic and environmental impact on local, predominantly indigenous, communities. The study area: the north of Irkutsk region and Republic of Buryatia that the last decades has undergone rapid changes of traditional way of life of "old settlers", native Buryats and Evenks, collapse of the Soviet economy, development of oil and gas extractive industries and infrastructure, environmental regulations to protect the Lake Baikal and tourism development. The data was obtained in 2016-2018 at the municipal and local levels using interviews, observations, statistics and cartographic tools. As a result, we identified formal and informal elements of transportation infrastructure with common set of characteristics (e.g. time of development; purpose; present conditions; changes in location; use) and distinguished the specifics of their maintenance requirements, the forms of ownership, seasonality and local traditions. The future plans to use remotely-sensed data, coordinated visual mapping sessions, and field studies for understanding land use changes due to development of informal road networks will be discussed in the presentation. 

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2. Nature-based approaches to managing climate change impacts in cities

   https://doi.org/10.1098/rstb.2019.0124  

   Hobbie, Sarah E.; Grimm, Nancy B. (January 2020, Philosophical Transactions of the Royal Society B: Biological Sciences)

   Managing and adapting to climate change in urban areas will become increasingly important as urban populations grow, especially because unique features of cities amplify climate change impacts. High impervious cover exacerbates impacts of climate warming through urban heat island effects and of heavy rainfall by magnifying runoff and flooding. Concentration of human settlements along rivers and coastal zones increases exposure of people and infrastructure to climate change hazards, often disproportionately affecting those who are least prepared. Nature-based strategies (NBS), which use living organisms, soils and sediments, and/or landscape features to reduce climate change hazards, hold promise as being more flexible, multi-functional and adaptable to an uncertain and non-stationary climate future than traditional approaches. Nevertheless, future research should address the effectiveness of NBS for reducing climate change impacts and whether they can be implemented at scales appropriate to climate change hazards and impacts. Further, there is a need for accurate and comprehensive cost–benefit analyses that consider disservices and co-benefits, relative to grey alternatives, and how costs and benefits are distributed across different communities. NBS are most likely to be effective and fair when they match the scale of the challenge, are implemented with input from diverse voices and are appropriate to specific social, cultural, ecological and technological contexts. This article is part of the theme issue ‘Climate change and ecosystems: threats, opportunities and solutions’. 

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3. Solutions to waste management in informal settlements in South Africa

   https://doi.org/10.56367/OAG-037-10465  

   Winter, Kevin; Paytan, Adina; Charlesworth, Sue; Fried, Jana (January 2023, Open Access Government)

   Solutions to waste management in informal settlements in South Africa South Africa has retained some of the unjust laws following the Apartheid system, but rapid urbanisation has resulted in burgeoning informal settlements, often situated on the periphery of major cities and towns, where clean water is often inaccessible and waste management is limited. Clean water is the main catalyst for the projects conducted by the Waste FEW ULL team, Kevin Winter, Adina Paytan, Sue Charlesworth, and Jana Fried. The motivation for developing the ULL arose out of concern about the contaminated water and its impact on human health and the environment. Rising demand for land and houses has made people struggle to overcome existing income and wealth disparities, with high levels of unemployment and poverty remaining, leaving many only able to live in so-called informal settlements. The concept of Urban Living Labs (ULLs) has advanced from centres that were largely seen as test beds of innovation to become sites of learning and places where stakeholders can co-create solutions to address critical issues and challenges. 

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4. Predicting European cities’ climate mitigation performance using machine learning

   https://doi.org/10.1038/s41467-022-35108-5  

   Hsu, Angel; Wang, Xuewei; Tan, Jonas; Toh, Wayne; Goyal, Nihit (December 2022, Nature Communications)

   Abstract Although cities have risen to prominence as climate actors, emissions’ data scarcity has been the primary challenge to evaluating their performance. Here we develop a scalable, replicable machine learning approach for evaluating the mitigation performance for nearly all local administrative areas in Europe from 2001-2018. By combining publicly available, spatially explicit environmental and socio-economic data with self-reported emissions data from European cities, we predict annual carbon dioxide emissions to explore trends in city-scale mitigation performance. We find that European cities participating in transnational climate initiatives have likely decreased emissions since 2001, with slightly more than half likely to have achieved their 2020 emissions reduction target. Cities who report emissions data are more likely to have achieved greater reductions than those who fail to report any data. Despite its limitations, our model provides a replicable, scalable starting point for understanding city-level climate emissions mitigation performance. 

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5. Upscaling urban data science for global climate solutions

   https://doi.org/10.1017/sus.2018.16  

   Creutzig, Felix; Lohrey, Steffen; Bai, Xuemei; Baklanov, Alexander; Dawson, Richard; Dhakal, Shobhakar; Lamb, William F.; McPhearson, Timon; Minx, Jan; Munoz, Esteban; et al (January 2019, Global Sustainability)

   Technical summary Cities have an increasingly integral role in addressing climate change. To gain a common understanding of solutions, we require adequate and representative data of urban areas, including data on related greenhouse gas emissions, climate threats and of socio-economic contexts. Here, we review the current state of urban data science in the context of climate change, investigating the contribution of urban metabolism studies, remote sensing, big data approaches, urban economics, urban climate and weather studies. We outline three routes for upscaling urban data science for global climate solutions: 1) Mainstreaming and harmonizing data collection in cities worldwide; 2) Exploiting big data and machine learning to scale solutions while maintaining privacy; 3) Applying computational techniques and data science methods to analyse published qualitative information for the systematization and understanding of first-order climate effects and solutions. Collaborative efforts towards a joint data platform and integrated urban services would provide the quantitative foundations of the emerging global urban sustainability science. 

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