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...
Peace is one of humanity’s most cherished ideals, and throughout history, cultures across the world have expressed this aspiration through unique symbols. From ancient myths to modern movements, these emblems carry stories of harmony, hope, and unity that transcend borders. 🕊️ The Dove and Olive Branch (Western Tradition) One of the most universal peace symbols is the dove carrying an olive branch . Biblical Roots: In the story of Noah’s Ark, a dove returned with an olive leaf, signaling the end of the flood and the restoration of peace. Modern Symbol: The dove gained global recognition after Pablo Picasso popularized it in his artwork for the 1949 World Peace Congress. 🌿 The Olive Branch (Ancient Greece and Rome) The olive tree has long been associated with peace and prosperity. In Ancient Greece , offering an olive branch was a gesture of truce and reconciliation. In Rome , it was a symbol of victory without violence—peaceful resolution rather than co...