Drought from an economic perspective
In the eighties, the United Nations led a huge effort to bring safe water to all people, with aid agencies and United Nation(UN) agencies dramatically increasing their water budgets and providing water. for a large number of people, who were previously deprived of it. However, at the end of the water contract, more than 1 billion people still had no access to safe and affordable drinking water, and more than 2 billion people remained in need of safe sanitation.
Although drinking water, cooking, bathing and all other household needs are only a small part of the basic supplies required, there is a much greater need to grow our food in addition to The fibers necessary for our clothes, such as cotton. Accordingly, in order to understand the water crisis, we must distinguish between two fundamentally different problems, which require different solutions. The first problem is the problem of drinking water, which revolves around access to affordable water services: here we are facing a crisis of services. The second problem revolves around the lack of very large water sources necessary for food cultivation and for the maintenance of ecosystem services: here we face the problem of water scarcity, a resource crisis.
Addressing the water crisis - the crisis of services (water for drinking) and the resource crisis (water for food and clothing) - will require both technical and political innovation, and climate change will bring additional challenges Linked to increased climate variability in many parts of the world, but advances in water science in recent decades have led to a better understanding of the underlying issues that need to be addressed in order to solve a crisis Water, as the accelerating innovation in water technologies in recent decades, seems innovation promising.
Therefore, in addition to green water, blue water, groundwater and surface water, water scientists must take into account the quality of water available, cities are throwing away large amounts of resources Organic and human waste in surrounding streams and rivers, making it in terms of containment of germs is unsafe to drink.
So, solutions to the global water crisis will not be technical arrangements of the kind that have been tried in the past. The solution to the water services crisis is likely to come through a combination of a very improved technology, at a cheaper cost, and a small, uniformsize ready on the shelf for water purification, in addition to better information, The public water sector has been repaired, and large numbers of local small and medium-sized water service providers are private.
People affected by the water resource crisis and their allies need to increase water productivity in a way that preserves ecosystem services, and in particular, not exclusively, by increasing water productivity. Green supports local capacity to manage climate risk. It's a huge demand, perhaps, but the current global food crisis is demonstrating what's at stake.
Interest in securing a stable source of water has been widespread around the world. Thousands of dams have worked and made irrigation possible all day of the year, despite the vagaries of the monsoon climate.
While salinity poses a serious threat to irrigated land, we are now hearing warnings about something more serious: a real global water scarcity.
In 2006, the International Water Management Institute reported that water scarcity had affected one third of the world's population. In 2007, the International Committee on Climate Change predicted that the number of people facing water scarcity would increase as a result of climate change. Others also say that there is a global water crisis, that water availability is decreasing, that the world's water is running out, that water is blue gold, and that future wars will break out. Because of the water.
Fred Pierce in His book, when Rivers Dry describes this apparent deficiency as a crisis that clearly defines the third millennium. So, is the planet on its way to drought? Not quite, but an increasing number of people share a limited amount of water, and that water is poorly managed and increasingly polluted. As a result of drinking unsafe water, more than 2 million children die of diarrhoeal diseases every year. We are able to avoid a full-dimensional global catastrophe. Unfortunately, the water crisis is a complex one, which is rarely understood by anyone in a holistic way.
It has been accelerated by climate change that dissolves the arctic ice sheet and has been exacerbated by the expansion of biofuel production, which increases pressures on water resources. Taking prior action to thwart the disaster will require a combination of sustainable technical innovation and institutional reform.
Please write: COMMENT in this box to verify that you are human