As a general concept, water turbidity is an optical measurement of the relative clarity of a liquid. It is one of the properties of water that allow us to characterize its quality.

In our increasingly interconnected world, social media is a vital tool that has changed the way we address and communicate important issues in the 21st century.

Inefficient water management is one of the factors that contributes to today's global water crisis.

Whether a trigger, weapon, or a casualty, water has played a major role in conflicts around the world. With climate change altering rainfall patterns and causing extended droughts all over the globe, disputes over water appear to remain a challenge for some regions. On the other hand, history has also witnessed water being the source of cooperation between nations.

Moving to a more sustainable long-term model for managing water supplies is essential if we are to avert a future water crisis. However, many countries still lack access to even basic clean water. The World Bank estimates that the poorest countries need to spend around $150 billion a year just to deliver safe and clean water for all.

In this climate, is it realistic to expect countries to achieve water sustainability? Where do we stand regarding water sustainability at the moment and what can be done to improve the situation in the future?

Water is essential to life on this planet. Yet there are signs that freshwater supplies are becoming more and more scarce. According to the UN, around 2 billion people – over 25% of the global population – already live in countries experiencing high water stress and it's predicted that around 700 million people could be displaced by extreme water scarcity by 2030. One of the key challenges is climate change, which is disrupting the global water cycle and affecting water supplies in a number of ways.

As we move away from fossil fuels to renewables, new technologies point to a cleaner energy scheme by decreasing the amount of greenhouse gases (GHG) emissions. In a planet with only 1% of fresh water, it is imperative that the new energy system pursues to decrease the water footprint (WF). Because a low-carbon footprint doesn’t necessarily mean a low water use. The water footprint (WF) is defined as the total annual volume of freshwater used to produce goods and services related to consumption.

With water making up around 70% of the earth's surface, you might not think that water shortage would be a problem affecting us anytime soon. However, a worrying report from the World resources Institute (WRI) released last year revealed that around one-quarter of the global population face living in conditions of extremely high water stress.

To build a water efficient society, we need to change the way we use and manage water. This is especially the case for businesses, as around 88% of the global water supply is used for commercial purposes. Companies looking to implement a sustainable water strategy should not underestimate the strength of getting their communications right, to ensure that their message reaches the necessary people in the right way. Engaging and informing stakeholders about the strategy and efforts on water management can strengthen the measures and enforce the saving potential.

Water is becoming more and more scarce as a resource, due to factors including global warming, poor water management and water-intensive commercial practices. But although there is a need for water sustainability strategies at all levels, water scarcity hasn't yet received the same attention as renewable energy when it comes to thinking of environmentally-friendly solutions.

In a world where water is readily available, it is hard to realize that without quality water, a country’s prosperity is at risk. In this article, I raise matters that speaks to two main audiences.

Day zero. It sounds like the title of an apocalyptic horror movie. Yet these two words have a real world meaning referring to the water crisis currently threatening a number of the world’s cities. This year, Cape Town prepared itself for a “day zero” – a dreaded day when water reserves become so low that central water supplies are turned off and the resource of water becomes rationed. This has now been put back to 2019.