The Amazon: a paradise lost?

Seen from the sky, the Amazon is an endless expanse of deep green, a place where life explodes from every surface, broken only by the blue rivers snaking across it.

Researchers discover why gold is concentrated alongside arsenic

Why are gold deposits found at all? Gold is famously unreactive, and there seems to be little reason why gold should be concentrated, rather than uniformly scattered throughout the Earth's crust. Now, an international group ...

Research finds 'fool's gold' not so foolish after all

Curtin University research has found tiny amounts of gold can be trapped inside pyrite, commonly known as "fool's gold," which would make it much more valuable than its name suggests.

Biodiversity 'hotspots' imperiled along California's streams

A study of woodland ecosystems that provide habitat for rare and endangered species along streams and rivers throughout California reveals that some of these ecologically important areas are inadvertently benefitting from ...

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