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Environmental Sciences

D-Index
57
Citations
13405
World Ranking
3412
National Ranking
56

Overview

Olli Varis is a researcher affiliated with Aalto University in Finland, specializing in Environmental Science with a significant focus on water-related studies and climate impacts. Varis's work spans various subfields including Water Science and Technology, Global and Planetary Change, Sociology and Political Science, Environmental Engineering, and Education.

Their research centers on themes related to the Water-Energy-Food Nexus, Environmental Impact and Sustainability, Water resources management and optimization, Child Nutrition and Water Access, as well as Climate Change, Adaptation, and Migration. Specific topics also include climate change impacts on agriculture and climate variability models.

Varis has contributed to several recent papers, notable among them:

  • Climate change risks pushing one-third of global food production outside the safe climatic space (2021, One Earth)
  • Increased probability of hot and dry weather extremes during the growing season threatens global crop yields (2023, Scientific Reports)
  • Quantifying economic-social-environmental trade-offs and synergies of water-supply constraints: An application to the capital region of China (2021, Water Research)
  • Socioeconomic drivers of provincial-level changes in the blue and green water footprints in China (2021, Resources Conservation and Recycling)
  • The potential of water security in leveraging Agenda 2030 (2021, One Earth)

Varis collaborates frequently with several researchers, including Maija Taka, Matti Kummu, Matias Heino, Marko Kallio, and Venla Niva. Their collaborative works often explore topics at the intersection of water security, climate risks, and sustainable development.

Their published work appears predominantly in a select range of academic journals and venues, notably:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Water Research
  • Journal of Cleaner Production
  • One Earth
  • International Journal of Water Resources Development

Best Publications

  • Lost food, wasted resources: global food supply chain losses and their impacts on freshwater, cropland, and fertiliser use

    M.S. Kummu;de H. Moel;M. Porkka;S. Siebert

  • Integrated Water Resources Management: Evolution, Prospects and Future Challenges

    Muhammad Mizanur Rahaman;Olli Varis

  • Sediment-related impacts due to upstream reservoir trapping, the Lower Mekong River

    Matti Kummu;Olli Varis

  • Is physical water scarcity a new phenomenon? Global assessment of water shortage over the last two millennia

    Matti Kummu;Philip J Ward;Hans de Moel;Olli Varis

  • How Close Do We Live to Water? A Global Analysis of Population Distance to Freshwater Bodies

    Matti Kummu;Hans de Moel;Philip J. Ward;Olli Varis

  • Basin-wide sediment trapping efficiency of emerging reservoirs along the Mekong

    Matti Kummu;Xi Xi Lu;Jian-Jun Wang;Olli Varis

  • China's 8 challenges to water resources management in the first quarter of the 21st Century

    Olli Varis;Pertti Vakkilainen

  • From food insufficiency towards trade dependency: a historical analysis of global food availability

    Miina Porkka;Matti Kummu;Stefan Siebert;Olli Varis

  • The unfolding water drama in the Anthropocene: towards a resilience-based perspective on water for global sustainability

    Johan Rockström;Malin Falkenmark;T. Allan;Carl Folke

  • Over the hills and further away from coast: global geospatial patterns of human and environment over the 20th-21st centuries

    Matti Kummu;Hans de Moel;Gianluigi Salvucci;Daniel Viviroli

  • Diet change—a solution to reduce water use?

    Mika Jalava;Matti Kummu;Miina Porkka;Stefan Siebert

  • CLIMATE AND WATER: FROM CLIMATE MODELS TO WATER RESOURCES MANAGEMENT AND VICE VERSA

    Olli Varis;Tommi Kajander;Risto Lemmelä

  • Reductionist and integrative research approaches to complex water security policy challenges

    Mark Zeitoun;Bruce Lankford;Tobias Krueger;Tim Forsyth

  • The world by latitudes: A global analysis of human population, development level and environment across the north–south axis over the past half century

    Matti Kummu;Olli Varis

  • Modeling environmentally driven uncertainties in Baltic cod (Gadus morhua) management by Bayesian influence diagrams

    S. Kuikka;M. Hildén;Henrik Gislason;S. Hansson

  • Bayesian networks in environmental and resource management

    David N. Barton;Sakari Kuikka;Olli Varis;Laura Uusitalo;Laura Uusitalo

  • The Water-Energy-Food Nexus and the Transboundary Context: Insights from Large Asian Rivers

    Marko Keskinen;Joseph H. A. Guillaume;Mirja Kattelus;Miina Porkka

  • Bayesian decision analysis for environmental and resource management

    Olli Varis

  • Megacities and Water Management

    Olli Varis;Asit K. Biswas;Cecilia Tortajada;Jan Lundqvist

  • Towards resilient flood risk management for Asian coastal cities: Lessons learned from Hong Kong and Singapore

    F.K.S. Chan;F.K.S. Chan;C. Joon Chuah;A.D. Ziegler;M. Dąbrowski

  • Learning Bayesian decision analysis by doing: lessons from environmental and natural resources management

    Olli Varis;Sakari Kuikka

Frequent Co-Authors

Matti Kummu
Matti Kummu Aalto University
Asit K. Biswas
Asit K. Biswas University of Glasgow
Stefan Siebert
Stefan Siebert University of Göttingen
Dieter Gerten
Dieter Gerten Potsdam Institute for Climate Impact Research
Hans de Moel
Hans de Moel Vrije Universiteit Amsterdam
Pute Wu
Pute Wu Northwest A&F University
Harri Koivusalo
Harri Koivusalo Aalto University
Laixiang Sun
Laixiang Sun University of Maryland, College Park
Claudia Kuenzer
Claudia Kuenzer German Aerospace Center
Jeffrey E. Richey
Jeffrey E. Richey University of Washington

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