Rivers join downstream, flow downhill, and eventually meet an ocean or terminal lake: These are fundamental rules of how waterways and basins are supposed to work. But rules are made to be broken. In ...

Add Yahoo as a preferred source to see more of our stories on Google. The nearly 3 million rivers that weave across the world are experiencing rapid and surprising changes, with potentially drastic ...

Human activities add large quantities of nitrogen to the environment, much of which gets washed into streams and rivers. These waterways transport some of that nitrogen to the oceans, but they also ...

When you think about heat waves, you might picture sweltering cities, shimmering asphalt and unbearable summer afternoons. These heat waves dominate the headlines because we feel them directly. Rivers ...

The nearly 3 million rivers that weave across the world are experiencing rapid and surprising changes, with potentially drastic implications for everything from drinking water supplies to flood risks, ...