water scarcity in india
Answers
Answer:
what is full questions
Answer:
Over 90% of the world now has access to improved drinking water, up from 76% in 1990. That is an improvement for 2.3 billion people in less than 20 years. However, that still leaves 884 million people without access, an increase from 663 million in 2015. Water consumption for about 500 million people is twice what can be renewed by nature, water tables are falling on all continents, the volume of untreated wastewater increases every year, and about 80% of all wastewater is discharged without treatment (UN, World Water Development Report 2017). Nearly half of humanity gets its water from sources controlled by two or more countries. In drier regions, global warming will increase droughts; in more humid regions, global warming will increase flooding. A third of humanity does not have access to a proper toilet or latrine, and 892 million people still defecate in the open.
Humanity uses 70% of its water supply for agriculture, 20% for industry, and 10% for domestic uses; however, the more developed nations use 50‑80% of their water supply for industry. As the developing world expands its industries, agriculture, and population growth, and as GDP per capita income rises, water consumption per capita will increase, making it impossible to avoid serious water crises and migrations unless major changes occur.
World leaders have agreed to create universal access to safe water and sanitation and other related UN Sustainable Development Goals by 2030.
Actions to Address Global Challenge 2:
Increase R&D for lower cost of desalination.
Invest in the development of wastewater products such as fertilizer, algae (for biofuel and feeding shrimp), and recovering nitrogen and phosphorus.
Implement WHO and UNESCO plans for universal water and sanitation access.
Manage all aspects of water resources to promote efficiency, equity, and sustainable development (integrated water management).
Create and promote smart phone apps to show water used to make products.
Produce animal products from genetic materials without growing animals.
Invest in seawater/saltwater agricultural development.
Promote Increased vegetarian diets.
Mass-produce electrochemical wastewater treatment solar power toilets.
Develop point-of-use water-purification technology.
Explanation: