Many rivers and lakes were selected as boundaries between countries or other political units such as states. Examples of boundary rivers include the lower Rio Grande River (shared by the …
Since ancient times people and their governments have taken on large and creative projects to increase their local water supply. Ancient farmers in the Middle East conceived a way to …
Effects of water scarcity vary from mild and temporary to severe and long-lasting. Increasing scarcity means that people on the margins of water availability must spend more time and more …
Earth is a water planet. Seventy percent of its surface is covered by water. Water seems to be everywhere, in the oceans, lakes, streams, glaciers, and even in people. Our …