By Alyssa Casey
Water scarcity is a global problem, as demonstrated by the recent droughts across the U.S. Midwest and the Horn of Africa. And it is projected to become increasingly widespread in the coming years: the 2030 Water Resources Group estimates that by 2030, one-third of the world’s population will live in regions where demand for water exceeds supply by more than 50 percent.
The rapidly growing and urbanizing global population will need more natural resources, especially water, to feed and sustain itself in the coming years. The effects of climate change will only exacerbate water scarcity. A rise in sea levels will increase the salinity of already-limited freshwater resources. Changing weather patterns will further polarize rainfall levels around the world: according to climate experts, many wet regions will see more rain and increasing flood risk, while many dry regions will experience less rainfall, increasing the frequency of drought.
India’s water woes
Although water scarcity is a global concern, some countries, such as India, are more affected than others. Home to 1.2 billion people, India struggles to feed 17 percent of the world’s population with just 4 percent of the world’s freshwater resources. More than 85 percent of India’s villages and over half of its cities rely on groundwater for agriculture, domestic use, and industry, but overuse has resulted in sinking water tables. Despite relative scarcity, India is the largest freshwater user in the world.
Water levels of India’s dams are falling to record lows. According to an analysis by NASA hydrologists, India’s water tables are declining at a rate of 0.3 meters per year, and between 2002 and 2008 more than 108.37 cubic kilometers of groundwater disappeared—double the capacity of India’s largest surface water reservoir. Decreasing levels of dams and rivers could lead to political conflict within the country, as well as conflict with neighboring countries, such as Bangladesh and Pakistan.