THE CRA PERSPECTIVE • EARTH SCIENCE How Much Water Is There on Earth? Can our planet ever run out of water? Exploring Earth's enormous water reserves, the freshwater shortage and the future of humanity. Water is one of the most extraordinary and essential resources on our planet. Our planet is called the Blue Planet for a reason. Approximately 71% of Earth's surface is covered by water. But does that mean we have an unlimited supply of water for human survival? Look at the oceans, rivers, lakes, glaciers and countless streams across the world. Water seems almost endless. It falls as rain, flows through rivers, disappears into the ground, freezes into ice and rises into the atmosphere as water vapour. Yet billions of people experience water shortages. Some communities struggle to obtain safe drinking water, groundwater reserves are declining in several regions, and pollution is making important water sour...
The Suez Canal is one of the most significant waterways in the world, linking the Mediterranean Sea to the Red Sea . Stretching about 193 kilometers (120 miles) across Egypt, it provides the shortest maritime route between Europe and Asia . Its strategic importance has made it a cornerstone of global trade and a focal point of geopolitical interest for more than a century. A Brief History The concept of connecting the Mediterranean to the Red Sea dates back to ancient Egypt, where early canals linked the Nile to the Red Sea. The modern Suez Canal was constructed by the French-led Suez Canal Company and officially opened in 1869 under the direction of Ferdinand de Lesseps. Since then, it has been central in world history, including the Suez Crisis of 1956 , when Egypt nationalized the canal, asserting sovereignty over this vital waterway. Global Trade Significance Roughly 12% of global trade passes through the Suez Canal, including vital shipments of oil, n...