By Kala Fleming
On the tiny island of Antigua where I grew up we always had enough water. We never had to call a water truck and to our knowledge, no one ever got sick from drinking the water in its natural state. The ‘natural’ state of water on Antigua is straight to the downpipe from the roof and into a concrete tank in the ground under each house. Community ponds also captured extra rainfall that others used for watering animals and washing cars.
Rainwater harvesting in the Caribbean provides a more reliable source of supply than piped systems and the geology of the region limits the availability of ground water. In the Virgin Islands, building regulations even require all new houses to harvest rainwater. So, in places such as urban Africa where ensuring water security has become increasingly tricky, why has this approach not caught on? Continue Reading »
By Sean McKenna, PhD.
In heavily populated regions of the world, the available water is fully subscribed. That is, claims have been made on all the available water for different uses including recreation, drinking water supply, industry, agriculture, and energy production.
As global energy consumption continues to rise (estimated 56 percent growth between 2010 and 2040 – US Energy Information Administration, 2013), additional water will be needed to increase energy production.
Finding water that is not already claimed is becoming difficult. However additional efficiencies can be obtained through improved management of the existing water resource. Generating energy through less water intensive means is another approach, but even Solar PV and wind turbines require water to mine and manufacture the materials that comprise them. Continue Reading »
By Dr. P.N. Ravindra
Bangalore, a name synonymous to the India’s Silicon Valley, has seen much change over the past few years. The metropolis has seen a boom in the IT sector, an unstoppable infrastructure development and ever increasing population influx. Currently, housing around 10 million people, the mega-city has been spurred by rapid growth and has acted as an engine of economic development. This unprecedented growth has led to an increased demand on the natural resources and put tremendous amount of pressure on water supply.
Water is critical to every aspect of our lives – be it food, healthcare, businesses. To meet the growing needs of the population, Bangalore currently gets a supply of around 1,125 million liters of water per day from various sources. The most important resource is River Cauvery, located 100 km away, which supplies 95 percent share of drinking water, which is pumped up a gradient of 300 meters to bring it to the city. Apart from this, water from various reservoirs surrounding the city caters to the needs of the people. However, the water supply in Bangalore is still under deficit as the demand grows exponentially. Continue Reading »
By Phil Guido
Conventional wisdom tells us that cities and regions that face a shortage of a resource will likely be the most innovative out of necessity in conserving it. Apparently the leaders of Milwaukee don’t prescribe to this reactive thinking.
Milwaukee, which is situated on one of the largest fresh water lakes in the world, Lake Michigan, decided a few years ago to use its abundance of water to invest in becoming an innovation hub for it.
After only a few years, Milwaukee’s investments are paying off. Nearly 200 water-related businesses have joined together through a brand new industry, academic and government collaborative called the Global Water Center whose function is to be a source for leading edge water technology and solutions. Continue Reading »
By Dr. Katharine Frase
The urbanization age is upon us. While the estimates vary of what percentage of population will live in cities by 2020, 2050, or even 2015 for that matter, what remains constant is the undeniable pace of change cities are already facing – change that will only accelerate.
Cities around the world, whether big, mid-size or small, are reaching their limits from growing and aging populations, strained infrastructures and a constant need to do more with less.
To reinvent themselves for the 21st century – “the New Era of Smart” – cities are turning to data. Using and analyzing information in new ways is enabling them to anticipate problems in real time, or better yet, before they happen. In addition, the knowledge and insight is crucial for city officials to make better decisions and swiftly resolve the issues that are most pressing for citizens. Continue Reading »
By Eric Siy and Dr. Sandra Nierzwicki-Bauer
The Jefferson Project at Lake George, being launched today in Upstate New York, is the culmination of a generation’s work to understand the lake’s changing water quality and what it will take to protect it for the next generation.
The project will advance the “Legacy Strategy” of The FUND for Lake Gorge, a science-based advocacy group founded in 1980. The Strategy was adopted last fall to stop documented declines in water quality as revealed by researchers at Rensselaer Polytechnic Institute’s Margaret A. and David M. Darrin ’40 Fresh Water Institute (DFWI). Continue Reading »
By Eoin Lane
People often say that water is the new oil, but really, it’s not. Oil is a fossil fuel that takes millions of years and a lot of pressure to create. When we burn oil – for example, by driving our cars – it is gone forever (or at least for a few more millions of years before it can be created again!).
Water, on the other hand, cannot be created or destroyed (this is not strictly true, but bear with me). The same amount of water is around today that was around when the Earth was formed. The truth is there is a lot of water on Earth – just not a lot of drinking water. Continue Reading »
By Ahmed Simjee
When I was growing up in South Africa, my family was fortunate. We had access to fresh drinking water. At first we lived on a small farm near Johannesburg, where we used a well. Later, when I moved closer to the city, I had good tap water. But many of my fellow South Africans weren’t so lucky, and, even today, many people in the rural areas and in informal settlements near the cities don’t have ready access to fresh drinking water. That’s why I’m extremely pleased to be spearheading an initiative in South Africa, WaterWatchers, which is aimed at using mobile phones and crowdsourcing to cut down on leaks and wasted water.
We’re launching our free WaterWatchers app today in Gauteng Province, home of Johannesburg and the capital city, Tshwane. With 12.3 million residents, the province represents 23% of South Africa’s population. We timed the launch to coincide with the United Nations’ World Water Day. If you’re in South Africa, please download the app. Continue Reading »
By Scott T. Rickards
In our data-rich financial universe, a fundamental economic question remains unanswered: at what cost is it economical for the world’s largest cities to bring additional water supply online?
The oil industry will tell you that $100/barrel oil is the value below which capital allocation can earn a return. Given its critical importance in our lives, why does the water industry not have a similar fast answer to the question? Is the ‘global water crisis’ a resource crisis or perhaps a capital crisis?
Precisely because of its critical importance, the water industry has been given a pass on cost transparency by everyone from politicians, to Wall Street, to economists due to the unimaginable consequences of not having an abundant supply of fresh water. As a result, the subject of water production costs remains largely unexplored and water has taken a back seat to virtually every other resource in the battle for private investment dollars. Continue Reading »
- By Mary Keeling
- Water is one of our most essential resources – yet much of the water we use every day is “hidden” as an indirect, yet critical, component of something else – food, health, energy, transportation and more. And of all the water on Earth, only 1 percent of it is useable by ecosystems and humans. In other words, a little bit of water needs to go a long way.
As the world’s population increases from today’s 7 billion to an estimated 8 billion in 2025, the demand for water will rise to satisfy increased demand for food, particularly as meat consumption in global diets increase. Every time you consume a kilo of beef you many not realize that it takes 15,500 liters of water to produce it. For comparison, it takes 1,300 liters of water to produce a kilo of wheat.