Question

What are the root causes of Day Zero? How has the city prepared for the event, or who could they prepare to avoid the worst impacts of the event? What is the role of individual members of the public in addressing this problem? What are the long-term actions that can be taken by members of the public and the government to avoid a repeat of the Day Zero scare? What are the challenges they face in taking such action or in avoiding this cr

Answer 1

The root causes of day zero is decreasing in quality because of an increase in pollution and the destruction of river catchments, caused by urbanisation, deforestation, damming of rivers, destruction of wetlands, industry, mining, agriculture, energy use and accidental water pollution.The City of Cape Town has introduced the idea of Day Zero to focus everyone's attention on managing water consumption as tightly as possible by cajoling water consumers into reducing usage.The “Day Zero” water crisis that threatened the city of Cape Town in South Africa last year was due to an expansion of stable conditions in the subtropics that pushed rainfall farther south, according to a meteorological analysis.

Cities prepare for the day zero should use and depends upon the rainy session, water rationing and purification. As the climate warms, extreme droughts and vanishing water supplies will likely become more common. But even without the added impact of climate change, normal rainfall variation plays an enormous role in year-to-year water availability. These ordinary patterns now have extraordinary effects because urban populations have had a tremendous growth spurt: by 2050 the United Nations projects that two thirds of the world's people will live in cities. Urban planners and engineers need to learn from past rainfall variability to improve their predictions and take future demand into account to build more resilient infrastructure.

The individual nedd to use water only the amount you actually require and making sure the water that is getting drained post usage can be reused.

The government takes long term action and make long term planning in order to avoid water crisis situation or day zero.

Water harvesting, use of rainy water optimally. Aware people of the city about the importance of water and its limited usefulness that will. Help to consume water for the long term.

To aware people to use the amount of water they actually require. In offices and corporate the supply of water has to be limited access. Water comes from. Mountain is also a good stap to store and purify for public use.

That made communication all the more important. Sending clear messages was necessary to keep residents aligned with the water-saving mission. Day Zero was always a moving target. City officials dutifully updated the projections each week based on the previous week’s consumption. Use less, and Day Zero retreated. Use more, and it moved forward.

As global temperatures continue to rise, cities around the world will have to figure out how to do more with less water. The Western Cape’s multi-pronged response to its water crisis from farming innovations to reducing urban water use to diversifying water supply sources could serve as a blueprint for cities that find themselves, like Cape Town, looking at near-empty dams. Farmers in the drought-affected area have had to abandon as much as a quarter of their crops, by some estimates, and tens of thousands of agricultural jobs have been lost in the fray.

A lot of ideas about how to bring more water to Cape Town have come past Neilson’s desk, including cloud seeding, harvesting water from the air and even towing a 100-million-tonne iceberg from Antarctica.