![]() Such a solution does not require electricity and is affordable, even for those living in the poorest parts of the world. ![]() (10−12) The government of India has approved the technology for national implementation. (9) In another example, a nanostructured material is able to remove arsenic from drinking water affordably and the technology is delivering clean water (CW) to about 1 million people each day, providing hope for another 80 million or so in India, who are affected by this problem. (5−8) This technology had already reached over 7.5 million people by 2016, when implementation data were last collected, reducing pesticide levels from over 20 times the safety standard to concentrations substantially below it (0.5 parts per billion, ppb, for all pesticides taken together). For example, there are filters that remove pesticides from drinking water using nanochemistry. ![]() Recent advances in the field of nanoscience provide many solutions to alleviate needs with regard to reducing scarcity or removing contamination. (4) Water is and will continue to be one of the most important interdisciplinary subjects of research. 83% of freshwater species have declined in the last 50 years. The need for urgent, concerted action is clear from just one observation: ca. Water in diverse forms is related to climate, food, health, and many other aspects of life, including its origin. Clean water challenges are highly interdisciplinary, and solutions therefore must cut across boundaries of disciplines. (3) Sustainable economic and technological development for all is needed, although acquiring a quality of life comparable to the United States for the rest of the world would require significant advances in treating, purifying, and assessing toxicity in water. For instance, the control over carbon emissions by developed countries is probably not the reason for the globe’s survival, but the lack of development in less-developed countries is, according to the Intergovernmental Panel on Climate Change (IPCC). (2) These emerging issues, similar to those existing throughout the world, present a complicated suite of problems that will require technological advances, limits on usage, and collective wisdom, and compassion in order to create sustainable solutions. The World Bank has predicted that achieving a growth rate of 8% or above for India will be possible only with a robust water management system. Simultaneously, their rapidly declining water resources will be burdened by unprocessed industrial waste. (1) With a growth rate over 6% in gross domestic product (GDP), the most populous countries, such as India and China, are increasing their chemical, pharmaceutical, agrochemical, automotive, petrochemical, semiconductor, and many other outputs, which will eventually “enrich” our ecosystem materially. The urban population has risen from 28% in 2000 to 33% in 2016. ![]() The country, which was largely rural years ago, has en masse become urban in the past two decades. Taking a specific case, India has just 4% of the global freshwater resources but ∼18% of the world’s population. Focus on water availability is likely to create businesses, drive the economy, and make the world breathe better. In cities such as Bangalore, where data are currently the most valuable commodity, we believe that a data ecosystem could be created for water. ![]() Crowded, expanding cities in many parts of the world are experiencing an increased demand for fresh water, and planners are unclear as to how the water needs of tomorrow will be met. ![]()
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