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When you think of a country’s water resources, you may not realise that there are many kinds. Some is surface water, such as dams and rivers. There’s also groundwater, which includes aquifers and, in some places, artificial recharge schemes that transfer surface water below-ground to store it.
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Fresh water is the most important resource for human life on earth. People can survive far longer without food than without water, and virtually all of our food sources require fresh water to grow or create.
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Water security has increasingly become a defining factor shaping the future of economies, cities, and, most critically, food systems
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For over three decades, satellites orbiting Earth have measured the height of the ocean surface with remarkable precision. These measurements are crucial because changes in ocean height are one of the clearest indicators of how our planet is responding to climate change. Rising ocean surfaces signal warming temperatures, melting ice and shifting ocean currents.
South Africa is the 30th driest country in the world. Over 400 towns, especially in the western and central parts of the country, rely on water from aquifers that they pump out of the ground (groundwater).
Water is essential to human life, and it's no mystery that the sun plays an important role in the water cycle on our planet, as water moves from clouds to rain to rivers, lakes and oceans, and back again. Scientists have discovered several ways to use the sun's energy and the processes of evaporation and condensation to help sanitize water and make it safe to drink.
