News headlines often feature stories of water scarcity challenges and increasing competition for water. So it is clear that we need to improve the efficiency and effectiveness of water systems globally – especially in the realm of irrigation management, the water we use to grow our food. However, a data gap exists about evapotranspiration (ET) which, if fixed, would help us understand the amount of water available and used in irrigation and would help us to have more accurate water balances at the basin level.
What do Yucatan (Mexico), Michoacan (Mexico), Karur (India), and Jan Kempdorp (South Africa) have in common? These are all places with successful stories of implementing Anaerobic Digestion (AD) for wastewater treatment. But what is AD? What are the benefits?
AD systems are installed for many different purposes, such as a waste treatment step, a means to reduce odours, a source of additional revenues, or a way to improve public image. The AD treats water and waste, reducing adverse environmental impacts. Through AD, two main by-products can be obtained: biogas—that can be used as a fuel, and sludge—that can be used as a soil amender for improve crops. These AD “by-products” are important in the context of mitigating the impacts of climate change, where environmental co-benefits come from efficient use of “by-products”. For instance, livestock enteric fermentation, livestock waste management, rice cultivation, and agricultural waste burning are all sources of methane emissions, representing between 7 and 10 percent of global methane emissions. AD not only treats water through an environmentally sustainable approach, but also contributes to produce high rates of methane for recovery and further utilization.
William Young, Lead Water Resources Management Specialist, the World Bank
The Ganges Basin in South Asia is home to some of the world’s poorest and most vulnerable communities. Annual floods during monsoon season cause widespread human suffering and economic losses. This year, torrential rains and catastrophic floods affected more than 45 million people, including 16 million children. By 2030, with ongoing climate change and socioeconomic development, floods may cost the region as much as $215 billion annually.
A new report, Flood Risk Assessment and Forecasting for the Ganges-Brahmaputra-Meghna River Basins, summarizes two recent initiatives aiming to reduce these flood losses: a flood risk assessment for the Ganges Basin and an improved flood forecasting system for the Ganges-Brahmaputra-Meghna basins.
When the “Swachh Bharat Mission-Gramin” (SBM-G) was launched in October 2014 with the goal of making rural India free from open defecation by 2019, it gave states and districts more flexibility than previous national sanitation programs had. This led to a successful experiment in Uttar Pradesh called “demand compression”.
The state was preparing to use a tried-and-tested triggering process, where trained motivators concentrate their efforts on a community to help improve their understanding of safe sanitation and stimulate demand for toilets in rural communities where open defecation is still common. However, they faced a problem. If all the households that were eligible for government subsidies would actually claim them, funds would soon run out. With an estimated 15 million households across Uttar Pradesh without a toilet and eligible for a government subsidy of around $200, about $3 billion would be needed.
India has about 650,000 villages. Many have tried different techniques - some successfully, some not. What if there were a “Google of sanitation”, where you could search for success stories of others who have faced the same situation, and a “LinkedIn of Sanitation” where you could reach out to peers with questions?
Eliminating inequality is integral to the Sustainable Development Goals , from ‘universal access’ to water, to ending poverty ‘everywhere’. Yet in a world where the politics of who gets what is increasingly polarised, leaving no-one behind is fundamentally a political project.
In a recent study with WaterAid in Nepal, for example, we found that in rural areas a combination of poverty, caste, and geography have shut the poorest fifth out of politics. While access to water has increased significantly for others, they are lagging behind.
Every city, country or district has its own political rules, most of which aren’t written down. Yet despite all this complexity, experts working on essential services like water, sanitation, health or education can avoid some common political missteps, wherever they work. Here are four most typical ones:
Sushila Devi, a mother of four in the rural Rohtas district of Bihar, India, has no significant assets and depends primarily on casual labor for income. She recently was able to take out a bank loan of INR 12,000 (US$180), which she used to construct a toilet in her family home
It was the Self-Help Group (SHG) in her village that persuaded Sushila of the importance of sanitation for her children’s health and nutrition, and helped her get the loan she needed. SHGs generally consist of 12 to 15 rural women, grouped into larger federations. They engage with formal financial institutions to help unbanked households access financial services, acting as platforms for standardized large-scale sensitization of community members on a variety of subjects.
Sushila’s actions are part of a larger change driven across Bihar by the recently launched Bihar Transformative Development Project (BTDP), commonly known as JEEViKA-II. This joint initiative of the Government of Bihar and the World Bank covers 300 (56 percent) of the blocks of rural Bihar. The project is working through SHGs to deliver awareness, training, finance, and monitoring on sanitation and nutrition in an integrated manner.