India has assumed the Presidency of Group of twenty (G20) intergovernmental forum on December 1, 2022 with 19 countries and European Union as partners. The G20 countries together represent around 90% of global GDP, 80% of global trade and two third of the world’s population. A G20 summit is planned during September 9-10, 2023 in New Delhi. The theme of G20 summit 2023 is “Vaisudhaiva Kutumbakam”, or “One Earth, One Family, One Future”.
With such an exciting global environment centered on India, RHAR 2023 scheduled during October 12-14, 2023 is planned to be a focused technical follow up in the area of integrated water resource management. The objective is to share the experiences and success examples of hydrological enrichment of catchments of small rivers particularly in water stressed areas, and protection of river water quality in urban environments to have a long term sustainable ground water condition and flowing healthy river.
United Nations Sustainable Development Goal 6 (SDG 6) envisages availability and sustainable management of water for all by 2030 and SDG 11 focuses on sustainable cities and communities. The themes of RHAR 2023 have been selected to work and contribute towards these two SDGs as our global commitment for humanity.
As per United Nations, when a country or territory withdraws 25 % or more of its renewable freshwater resources, it is called ‘water stressed’. According to the reports of Water Resources Institute (WRI, 2019), 37 countries of the world are found under ‘extremely high stress’ (ratio of annual withdrawal to supply beyond 80%). Saudi Arabia ranks 8th and India is 13th on the list. As a nation, India has a total renewable water resource of 1911 Billion Cubic Meter (BCM) per year (2017) and a total annual withdrawal of 761 BCM (2010). It is one among the ‘high stress’ countries (withdrawal 40-80% of supply) in the world. The deteriorating hydrological conditions of smaller rivers and depleting ground water levels indicate water stressing environment in a region.
Among low performing states (CWMI below 50), currently there are 29 cities (Uttar Pradesh: 14; Bihar: 4; Rajasthan: 4; Chhattisgarh: 3; Odisha: 2; Jharkhand: 1; and Delhi: 1) in the northern region under Smart Cities Mission (SCM) of India.
For a sustainable urban water management (SUWM), Brown et al. (2008) talked about “Transitioning to Water Sensitive Cities” through detailed historical, contemporary and research perspectives for Australian cities and defined six states of a city transition: ‘Water Supply City’, the ‘Sewered City’, the ‘Drained City’, the ‘Waterways City’, the ‘Water Cycle City’, and the ‘Water Sensitive City’. Parallel to several nations working in this direction, Center for Science and Environment (CSE) in India published a “Practitioner’s Guide” for ‘Water Sensitive Urban Design and Planning (WSUDP)’ in 2017. National Mission for Clean Ganga (NMCG) started capacity building initiatives on making water sensitive cities in Ganga Basin in 2021. In the meantime, Ministry of Urban Development (MoUD), Govt. of India launched Smart Cities Mission (SCM) in June 2015 to develop 100 ‘Smart Cities’ in the country which is likely to complete its first phase by June 2023. As per experts, the notion of a smart city is established from the combination of the knowledge society and digital city. The development of Information and Communication Technology (ICT) has given new ways of addressing urban challenges and problems, which have resulted in an opportunity to rethink the way we plan cities in a new urban form called ‘Smart Cities’.
Hattum et al. (2016) talked about moving ‘Towards Water Smart Cities (WSC)’ for climate adaptation. This is to create green, resilient and circular cities, so called ‘Water Smart Cities’ to improve the quality of life in such areas. The WSC approach integrates urban planning and water management to increase climate resilience with creating value for citizens.
Accordingly the focus of RHAR 2023 is to look on the conditions of our rivers through two lenses: the first being water conservation, and adoption of efficient practices to make the entire region ‘water positive’ and the second to create suitable infrastructures and systems for used water treatment, recycling and reuse around the cities to make them ‘water smart’, green, climate resilient and supporting circular economy. The objective is to collate and compile useful information, tools and techniques as well as national and international experiences to ensure ‘Water Positive Regions’ and ‘Water Smart Cities’ (WSC) so that our rivers flow in healthy conditions.
Our institutional partner, National Institute of Urban Affairs (NIUA) Delhi in association with the National Mission for Clean Ganga (NMCG) have established a ‘River Cities Alliance (RCA)’ of more than 100 river cities across India. RCA provides a platform for the Executive Officers, and senior officials of member cities to discuss and co-learn good practices for managing urban rivers.
For healthy rivers in a basin, the area must be ‘water positive’ and the cities in the catchment must be ‘water smart’. Accordingly, there are two dimensions of discussion in RHAR 2023: