Glaciers form in polar regions and high mountains from compressed snow. Currently cover 10% of world's landmass, mostly in Antarctica and Greenland. Glaciers can flow like rivers despite being solid masses
Glaciers are massive moving ice bodies formed on land. They form when snow compresses over centuries. Glaciers can be 100-1000 years old. Human activities are causing glaciers to melt and raise temperatures. Three types: mountain, valley, and rock glaciers
World Water Day celebrated annually on March 22 since 1993. 2.2 billion people lack safe water access globally. UN-Water sets annual themes for World Water Day. 2023 theme was "Accelerating Change," 2024 "Leveraging Water for Peace"
Fresh water accounts for 0.003% of global water availability. Saline water makes up 97% of Earth's total water. Freshwater lakes contain 87% of surface water globally
Tibet lies between Central, East and South Asia. Most of Tibet sits on Tibetan Plateau with peaks up to 7,500m. Bounded by Central China Plain to north and east, Indian subcontinent to west and south
Water cycle exchanges water through land, ocean, and atmosphere. Evaporation converts liquid to gas, driven by sun. Condensation transforms gas to liquid, forming clouds or fog. Precipitation includes rain, snow, and hail from atmospheric condensation