The number of countries in the world does not change very often, but when it does, mapmakers (and their digital counterparts) ...

Concerns persist over recent and potential conflicts in the Middle East, the Russia-Ukraine war and potential conflagrations ...

The maps here show the world as it is now ... Lately it seems to be thickening slightly—because of global warming. The warmer atmosphere holds more water vapor, which falls as snow on East ...

About 17 million people are at risk of gastrointestinal problems due to excessive sulfate levels in groundwater. This alarming finding emerged from the first high-resolution global groundwater sulfate ...