Olli Varis

  • Tietotie 1 E

1992 …2020

Research output per year

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Research Output

2020

China's sustainable water-energy-food nexus by 2030 : Impacts of urbanization on sectoral water demand

Niva, V., Cai, J., Taka, M., Kummu, M. & Varis, O., 1 Apr 2020, In : Journal of Cleaner Production. 251, 119755.

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Quenching the thirst of rapidly growing and water-insecure cities in sub-Saharan Africa

Niasse, M. & Varis, O., 3 Mar 2020, In : International Journal of Water Resources Development. 36, 2-3, p. 505-527 23 p.

Research output: Contribution to journalArticleScientificpeer-review

2019

Can There be Water Scarcity with Abundance of Water? Analyzing Water Stress during a Severe Drought in Finland

Ahopelto, L., Veijalainen, N., Guillaume, J. H. A., Keskinen, M., Marttunen, M. & Varis, O., 2 Mar 2019, In : Sustainability . 11, 6, 18 p., 1548.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
4 Citations (Scopus)
118 Downloads (Pure)

Enhancing Security, Sustainability and Resilience in Energy, Food and Water

Keskinen, M., Sojamo, S. & Varis, O., 17 Dec 2019, In : Sustainability . 11, 24, 8 p., 7244.

Research output: Contribution to journalEditorialScientific

Open Access
File
1 Citation (Scopus)
33 Downloads (Pure)

Integrated assessment of resource-energy-environment nexus in China's iron and steel industry

Zhang, S., Yi, B-W., Worrell, E., Wagner, F., Crijns-Graus, W., Purohit, P., Wada, Y. & Varis, O., 20 Sep 2019, In : Journal of Cleaner Production. 232, p. 235-249 15 p.

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Rural-Urban Migration and the Growth of Informal Settlements : A Socio-Ecological System Conceptualization with Insights Through a "Water Lens"

Niva, V., Taka, M. & Varis, O., 2 Jun 2019, In : Sustainability . 11, 12, 16 p., 3487.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
4 Citations (Scopus)
81 Downloads (Pure)

The demanding quest for harmony : China's polarizing freshwater resilience map

Varis, O. & Kummu, M., 13 May 2019, In : Environmental Research Letters. 14, 5, 9 p., 054015.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
3 Citations (Scopus)
97 Downloads (Pure)

The Planet's Stressed River Basins : Too Much Pressure or Too Little Adaptive Capacity?

Varis, O., Taka, M. & Kummu, M., 1 Oct 2019, In : Earth's Future. 7, 10, p. 1118-1135 18 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
1 Citation (Scopus)
25 Downloads (Pure)
2018

Corrigendum to 'Sediment-related impacts due to upstream reservoir trapping, the Lower Mekong River' (vol 85, pg 275, 2007)

Kummu, M. & Varis, O., 15 Feb 2018, 1 p. Elsevier.

Research output: Other contributionScientificpeer-review

Discussion of "Challenges in operationalizing the water-energy-food nexus"

Varis, O. & Keskinen, M., 10 Sep 2018, In : HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES. 63, 12, p. 1863-1865 3 p.

Research output: Contribution to journalComment/debateScientificpeer-review

Open Access
3 Citations (Scopus)
11 Citations (Scopus)

Greenhouse gas emissions of hydropower in the Mekong River Basin

Räsänen, T. A., Varis, O., Scherer, L. & Kummu, M., 1 Mar 2018, In : Environmental Research Letters. 13, 3, 034030.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
23 Citations (Scopus)
202 Downloads (Pure)

Impacts of urbanization on water use and energy-related CO2 emissions of residential consumption in China : A spatio-temporal analysis during 2003-2012

Cai, J., Yin, H. & Varis, O., 1 Sep 2018, In : Journal of Cleaner Production. 194, p. 23-33 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
19 Downloads (Pure)

Population Megatrends and Water Management

Varis, O., 2018, Assessing Global Water Megatrends. p. 41-59 19 p. (Water Resources Development and Management).

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

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

Chan, F. K. S., Chuah, C. J., Ziegler, A. D., Dąbrowski, M. & Varis, O., 20 Jun 2018, In : Journal of Cleaner Production. 187, p. 576-589 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
16 Citations (Scopus)
21 Downloads (Pure)
2017

Bringing it all together : linking measures to secure nations’ food supply

Kummu, M., Fader, M., Gerten, D., Guillaume, J. HA., Jalava, M., Jägermeyr, J., Pfister, S., Porkka, M., Siebert, S. & Varis, O., 1 Dec 2017, In : Current Opinion in Environmental Sustainability. 29, p. 98-117 20 p.

Research output: Contribution to journalReview ArticleScientificpeer-review

Open Access
File
20 Citations (Scopus)
24 Downloads (Pure)

China’s water resources vulnerability: A spatio-temporal analysis during 2003-2013

Cai, J., Varis, O. & Yin, H., 2017, In : Journal of Cleaner Production. 142, p. 2901-2910 10 p.

Research output: Contribution to journalArticleScientificpeer-review

41 Citations (Scopus)

Four dimensions of water security with a case of the indirect role of water in global food security

Varis, O., Keskinen, M. & Kummu, M., 2017, In : Water Security. 1, p. 36-45 10 p.

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)
2016

An evaluation of the Standardized Precipitation Index for assessing inter-annual rice yield variability in the Ganges-Brahmaputra-Meghna region

Kattelus, M., Salmivaara, A., Mellin, I., Varis, O. & Kummu, M., 1 Apr 2016, In : INTERNATIONAL JOURNAL OF CLIMATOLOGY. 36, 5, p. 2210-2222 13 p.

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Diet change and food loss reduction: What is their combined impact on global water use and scarcity?

Jalava, M., Guillaume, J. H. A., Kummu, M., Porkka, M., Siebert, S. & Varis, O., Mar 2016, In : Earth's Future. 4, 3, p. 62-78 17 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
33 Citations (Scopus)
73 Downloads (Pure)

Facilitating bricolage through more organic institutional designs? The case of water users’ associations in rural Nepal

Haapala, J., Rautanen, S-L., White, P., Keskinen, M. & Varis, O., 2016, In : THE INTERNATIONAL JOURNAL OF THE COMMONS. 10, 2, p. 1172–1201 30 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
6 Citations (Scopus)
270 Downloads (Pure)

Impacts of industrial transition on water use intensity and energy-related carbon intensity in China: A spatio-temporal analysis during 2003–2012

Cai, J., Yin, H. & Varis, O., 1 Dec 2016, In : Applied Energy. 183, p. 1112-1122 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
19 Citations (Scopus)
484 Downloads (Pure)

Introduction: Water and security in central Asia-solving a rubik's cube

Stucki, V., Wegerich, K., Rahaman, M. M. & Varis, O., 8 Apr 2016, Water and Security in Central Asia: Solving a Rubik's Cube. p. 1-3 3 p.

Research output: Chapter in Book/Report/Conference proceedingForeword / postscriptScientificpeer-review

Managing the water-energy-food nexus: Gains and losses from new water development in Amu Darya River Basin

Jalilov, S. M., Keskinen, M., Varis, O., Amer, S. & Ward, F. A., 1 Aug 2016, In : Journal of Hydrology. 539, p. 648-661 14 p.

Research output: Contribution to journalArticleScientificpeer-review

39 Citations (Scopus)

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

Kummu, M., De Moel, H., Salvucci, G., Viviroli, D., Ward, P. J. & Varis, O., 3 Mar 2016, In : Environmental Research Letters. 11, 3, 15 p., 034010.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
52 Citations (Scopus)
72 Downloads (Pure)

Potential and pitfalls of frugal innovation in the water sector: Insights from Tanzania to global value chains

Hyvärinen, A., Keskinen, M. & Varis, O., 2 Sep 2016, In : SUSTAINABILITY. 8, 9, p. 1-16 16 p., 888.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
10 Citations (Scopus)
136 Downloads (Pure)

Reductionist and integrative research approaches to complex water security policy challenges

Zeitoun, M., Lankford, B., Krueger, T., Forsyth, T., Carter, R., Hoekstra, A. Y., Taylor, R., Varis, O., Cleaver, F., Boelens, R., Swatuk, L., Tickner, D., Scott, C. A., Mirumachi, N. & Matthews, N., 1 Jul 2016, In : Global Environmental Change: Human and Policy Dimensions. 39, p. 143-154 12 p.

Research output: Contribution to journalArticleScientificpeer-review

58 Citations (Scopus)

Riskit hallintaan vesi-energia-ruoka –nexuksen avulla?

Keskinen, M., Rekolainen, S., Sojamo, S. & Varis, O., 2016, In : VESITALOUS. 57, 4, p. 24-26

Research output: Contribution to journalArticleProfessional

Socio-Economic Changes in Cambodia’s Unique Tonle Sap Lake Area: A Spatial Approach

Salmivaara, A., Kummu, M., Varis, O. & Keskinen, M., 2016, In : APPLIED SPATIAL ANALYSIS AND POLICY. 9, 3, p. 413-432 20 p.

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

The major central asian river basins: An assessment of vulnerability

Varis, O. & Kummu, M., 8 Apr 2016, Water and Security in Central Asia: Solving a Rubik's Cube. p. 39-58 20 p.

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

The vulnerability of thermoelectric power generation to water scarcity in China: Current status and future scenarios for power planning and climate change

Zheng, X., Wang, C., Cai, W., Kummu, M. & Varis, O., 1 Jun 2016, In : Applied Energy. 171, p. 444-455 12 p.

Research output: Contribution to journalArticleScientificpeer-review

47 Citations (Scopus)

The water-energy-food nexus and the transboundary context: Insights from large Asian rivers

Keskinen, M., Guillaume, J. H. A., Kattelus, M., Porkka, M., Räsänen, T. A. & Varis, O., 2016, In : WATER. 8, 5, p. 1-25 193.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
45 Citations (Scopus)
118 Downloads (Pure)

Water and security in Central Asia: Solving a Rubik's Cube

Stucki, V., Wegerich, K., Rahaman, M. M. & Varis, O., 8 Apr 2016, 187 p.

Research output: Book/ReportBookScientificpeer-review

Water-energy-food nexus in Large Asian River Basins

Keskinen, M. & Varis, O., 12 Oct 2016, In : WATER. 8, 10, 446.

Research output: Contribution to journalEditorialScientificpeer-review

Open Access
File
9 Citations (Scopus)
220 Downloads (Pure)
2015

China’s southbound transboundary river basins: a case of asymmetry

Kattelus, M., Kummu, M., Keskinen, M., Salmivaara, A. & Varis, O., 2015, In : Water International. 40, 1, p. 113-118

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Exploring the Modifiable Areal Unit Problem in Spatial Water Assessments: A Case of Water Shortage in Monsoon Asia

Salmivaara, A., Porkka, M., Kummu, M., Keskinen, M., Guillaume, J. H. A. & Varis, O., 2015, In : WATER. 7, 3, p. 898-917

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
13 Citations (Scopus)
137 Downloads (Pure)

Hydropower development in Myanmar and its implications on regional energy cooperation

Kattelus, M., Rahaman, M. M. & Varis, O., 2015, In : International Journal of Sustainable Society. 7, 1, p. 42-66

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Sharing benefits in transboundary rivers: an experimental case study of Central Asian water-energy-agriculture nexus

Jalilov, S-M., Varis, O. & Keskinen, M., 2015, In : WATER. 7, 9, p. 4778-4805

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
22 Citations (Scopus)
114 Downloads (Pure)

Transferable Principles for Managing the Nexus: Lessons from Historical Global Water Modelling of Central Asia

Guillaume, J. H. A., Kummu, M., Eisner, S. & Varis, O., 2015, In : WATER. 7, 8, p. 4200-4231

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
16 Citations (Scopus)
112 Downloads (Pure)
2014

A conceptual model to guide exploration of global food-water security

Guillaume, J. H. A., Kummu, M., Porkka, M. & Varis, O., 2014, 7th International Congress on Environmental Modelling and Software, San Diego, CA, USA, June 15-19, 2014. Ames, D. P., Quinn, N. W. T. & Rizzoli, A. E. (eds.). San Diego, California: International Environmental Modelling and Software Society (iEMSs), p. 2210-2217

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

China's stressed waters: Societal and environmental vulnerability in China's internal and transboundary river systems

Varis, O., Kummu, M., Lehr, C. & Shen, D., 2014, In : Applied Geography. 53, p. 105-116

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
24 Citations (Scopus)
292 Downloads (Pure)

Climate-driven interannual variability of water scarcity in food production potential: A global analysis

Kummu, M., Gerten, D., Heinke, J., Konzmann, M. & Varis, O., 5 Feb 2014, In : Hydrology and Earth System Sciences. 18, 2, p. 447-461 15 p.

Research output: Contribution to journalArticleScientificpeer-review

64 Citations (Scopus)

Curb vast water use in central Asia

Varis, O., 2014, In : Nature. 514, 7520, p. 27-29

Research output: Contribution to journalComment/debateScientificpeer-review

36 Citations (Scopus)

Diet change - a solution to reduce water use ?

Jalava, M., Kummu, M., Porkka, M., Siebert, S. & Varis, O., 2014, In : Environmental Research Letters. 9, 7, p. 1-14 074016.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
98 Citations (Scopus)
193 Downloads (Pure)

Integrated Water Resources Management: Horizontal and vertical explorations and the “Water in All Policies” approach

Varis, O., Enckell, K. & Keskinen, M., 2014, In : International Journal of Water Resources Development. 30, 3, p. 433-444

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)

Myanmar under reform: Emerging pressures on water, energy and food security

Kattelus, M., Rahaman, M. M. & Varis, O., 2014, In : Natural Resources Forum. 38, 2, p. 85-98 14 p.

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Myanmar under reform: Emerging pressures along the water - energy - food nexus

Kattelus, M., Rahaman, M. M. & Varis, O., 2014, In : Natural Resources Forum. 38, 2, p. 85-98

Research output: Contribution to journalArticleScientificpeer-review

The Unfolding Water Drama in the Anthropocene: towards a resilience based perspective on water for global sustainability

Rockström, J., Falkenmark, M., Allan, T., Folke, C., Gordon, L., Jägerskog, A., Kummu, M., Lannerstad, M., Meybeck, M., Molden, D., Postel, S., Savenije, H., Svedin, U., Turton, A. & Varis, O., 2014, In : JOURNAL OF HYDROLOGIC ENGINEERING. 7, 5, p. 1249-1261

Research output: Contribution to journalArticleScientificpeer-review

82 Citations (Scopus)
2013

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

Porkka, M., Kummu, M., Siebert, S. & Varis, O., 2013, In : PloS one. 8, 12, p. 1-12 e82714.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
97 Citations (Scopus)
154 Downloads (Pure)

From food insufficiency towards trade dependency: A historical analysis of global food system

Porkka, M., Kummu, M., Siebert, S. & Varis, O., 2013, p. poster.

Research output: Working paperProfessional