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Mar 20, 2018·8 min read
Its Time to Act Water Scarcity and Climate Change Have Reached Dangerous Levels1

It’s Time to Act : Water Scarcity and Climate Change Have Reached Dangerous Levels

It’s Time to Act : Water Scarcity and Climate Change Have Reached Dangerous Levels

Quick Answer: Water scarcity already affects over 4 billion people at least one month per year, and climate change is intensifying the crisis through accelerated glacial melt, altered precipitation patterns, and increased drought frequency. Desalination, water reuse, efficiency improvements, and integrated water management are the key technology-based responses to the growing global water gap.

Most of us are aware of the fact that 70 percent of planet earth is covered with water. Due to this, some people find it difficult to believe that the world is actually facing a water scarcity crisis. What such people fail to realize is that just three percent of world’s water is fresh and suitable for drinking, bathing, cooking, irrigation and other such uses. Even two-thirds of that water is unavailable for use for various reasons like it is tucked away in frozen glaciers.

The Hard Facts

It is a fact that about 1.1 billion people across the world lack pure water and over 2.7 percent have to deal with its scarcity for at least one month every year. More than half of wetlands of the world have vanished and natural sources like rivers, aquifers, and lakes are becoming dry or too polluted to use. As per an estimate, about two-thirds of world’s population will have to face water shortages by 2025.

Impact of Climate Change

No Rain

Climate change is one of the core reasons for the scarcity of water. Earth is already one of the hottest planets and climate change is increasing the heat to new levels. A phenomenon called Hadley Cell Expansion is forcing clouds to move away from the equator and become closer to the poles. Due to this, equatorial regions like the Middle East, Sub-Saharan Africa and Central America are deprived of rainwater.

More Floods

More than 21 million people across the world are at risk of river flooding thanks to rising precipitation which is another side effect of climate change. By 2030, the number of people at risk could be as high as 54 million. Water is a great destroyer and these floods often lead to massive deaths and a lot of destruction of property.

Groundwater Depletion

Groundwater depletion is another thing to worry about. Humans are using groundwater for the purposes of drinking, farming, and industrial use. What they fail to realize is that once this water is depleted, it is nearly impossible to increase these levels again because the rate of replenishment is far lower than the rate of depletion. As it is quite tough to measure the rate at which groundwater is being depleted, most people fail to realize how severe this problem is.

Mounting Waste

Wastage of this precious resource is also growing at an alarming rate thanks to inefficient practices like flood irrigation and wet cooling at thermal power plants. Humans also have the bad habit of releasing wastewater into fresh water sources like rivers without treating the same (about 80 percent). The result, rivers, and lakes are not as pure as they used to be. They also need to be cleaned regularly!

Rising Temperature Levels

Since the 1970s, the global surface temperature has risen at an average rate of around 0.3° Fahrenheit or 0.17°C. In 2016, it was 1.69°F or 0.94°C while in the 20th century it was at an average of 57.0°F or 13.9°C. It had surpassed the record warmth of 2015 by 0.07°F or 0.04°C. According to predictions, the global surface temperature would be over 0.9°F or 0.5°C by 2020.

A Simple Solution

Though there is a need to take many steps to save this rare resource and reduce the impact of climate change on its scarcity, one of the solutions that might actually work is the adoption of solar power water systems as they make use of the solar power to operate and have the capacity to get rid of all contaminants. When seeking the best products in this regard that meet your household, commercial and industrial needs, trust AMPAC USA. We are a leader in providing solar powered reverse osmosis and seawater desalination systems that make this precious resource more useful without rising your power bills. Contact us for more!

Sources

  • https://www.worldwildlife.org/threats/water-scarcity
  • https://www.climate.gov/news-features/understanding-climate/climate-change-global-temperature
  • http://www.wri.org/blog/2017/08/7-reasons-were-facing-global-water-crisis

What flow rates are available for emergency water treatment?

AMPAC USA's emergency systems range from 1,500 GPD portable units to 50,000+ GPD trailer-mounted systems. Military-specification units are available for forward operating base deployment, producing potable water meeting EPA and WHO drinking water standards from virtually any source.

Are emergency RO systems suitable for disaster relief operations?

Yes. AMPAC USA's emergency systems are used by FEMA, the U.S. military, and international NGOs for disaster relief. They treat flood water, contaminated groundwater, and brackish sources, removing bacteria, viruses, and chemical contaminants to produce safe drinking water on-site.

What power sources can emergency water purification systems use?

AMPAC USA's emergency systems can run on generator power (120/240V or 480V 3-phase), solar panels with battery backup, or vehicle power take-off (PTO). Low-power models consume as little as 0.5 kW, making them viable for off-grid deployment.

How durable are military-grade water purification systems?

AMPAC USA's military systems are built to MIL-SPEC standards with stainless steel frames, powder-coated components, and UV-resistant materials. They are designed to operate in temperatures from -20°F to 120°F and are vibration-tested for transport in military vehicles.

Conclusion

This post highlighted how emergency and military-grade water purification systems provide safe drinking water rapidly in the most challenging field conditions. For organizations requiring deployable water treatment capability, AMPAC USA engineers portable and trailer-mounted systems built to perform wherever they are needed. Contact our team at [email protected] or (909) 548-4900 to discuss your emergency water treatment requirements.

Water Scarcity and Climate Change: Understanding the Scale of the Challenge

The intersection of water scarcity and climate change represents one of the most consequential environmental challenges of the 21st century. Current data from the UN and World Resources Institute indicates that approximately 4 billion people experience severe water scarcity at least one month per year, and 500 million face year-round water stress. These numbers are projected to increase substantially as global temperatures rise — the IPCC AR6 report projects that limiting warming to 1.5 degrees C (versus 2 degrees C) would reduce the population exposed to water stress by 50%.

The mechanisms linking climate change to water scarcity are multiple and interacting. Glacial retreat reduces dry-season river flow for hundreds of millions of people in Asia and South America who depend on glacial meltwater. Changes in precipitation distribution create longer dry seasons in already water-stressed regions including the Middle East, Mediterranean, sub-Saharan Africa, and western North America. Increased evapotranspiration from warming temperatures reduces soil moisture even where precipitation totals remain similar. Sea-level rise causes saltwater intrusion into coastal aquifers, reducing usable freshwater supply in densely populated coastal zones.

Desalination is increasingly deployed as a drought-proof water supply augmentation strategy in water-stressed regions. The global desalination capacity has grown dramatically to over 100 million m3/day, with the majority produced by reverse osmosis. The combination of declining solar PV costs and improved RO energy efficiency is making solar-powered desalination economically viable for distributed water supply. AMPAC USA designs RO and desalination systems specifically for water-stressed environments — solar-compatible, high-recovery configurations that minimize both energy consumption and environmental impact of concentrate disposal.

Frequently Asked Questions

Q: What is water scarcity and how is it measured?

A: Water scarcity occurs when water demand exceeds available supply or water quality is so poor it limits effective use. It is commonly measured by the Falkenmark indicator (freshwater availability per capita) or the water withdrawal-to-availability ratio. Below 1,000 m3/capita/year indicates water scarcity; below 500 m3/capita/year indicates absolute scarcity.

Q: How does climate change worsen water scarcity?

A: Climate change worsens water scarcity through glacial melt reducing dry-season flows, altered precipitation patterns, increased drought frequency and intensity, higher evapotranspiration from warming, and sea-level rise causing saltwater intrusion into coastal aquifers.

Q: Which regions face the greatest water stress from climate change?

A: The Middle East and North Africa, sub-Saharan Africa, the Mediterranean basin, Central Asia, and the western United States face the most severe projected increases in water stress under climate change scenarios. These regions already have limited water reserves and rapidly growing demand.

Q: Is desalination a viable solution to water scarcity?

A: Yes, for coastal regions. Modern SWRO desalination produces water at $0.50-1.00 per cubic meter — increasingly competitive with alternatives in water-scarce areas. The primary constraints are energy cost and concentrate disposal. Solar-powered desalination addresses the energy concern for many applications.

Q: What is water reuse and how does it address scarcity?

A: Water reuse (or water recycling) treats municipal wastewater to high standards for reuse in agriculture, industry, or (in advanced cases) indirect potable reuse via groundwater recharge. Advanced treatment including reverse osmosis and UV can produce water meeting or exceeding drinking water standards from treated wastewater.

Q: What is virtual water and why does it matter?

A: Virtual water refers to the water embedded in the production of goods — a kilogram of beef requires approximately 15,400 liters of water, while a kilogram of wheat requires about 1,300 liters. Changing dietary patterns and water-efficient agricultural practices can significantly reduce total water demand in water-stressed regions.

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