How does mercury accumulation vary in tropical forests?

As a global pollutant, mercury (Hg) is emitted directly into the atmosphere from geogenic and anthropogenic sources and previously deposited Hg in natural surfaces. Previous studies in subtropical evergreen forests have shown ...

Systems analysis for a new Arctic

The Arctic region has long been seen as one of the Earth's most remote frontiers. However, the Arctic is changing quickly, which is important in global governance, geopolitics and the global economy. Temperatures have warmed ...

How cars, pollution and suburbia threaten rattlesnakes

Just like the hordes of mountain bikers, hikers and trail runners that migrate from their comfortable couches to more open spaces in spring, western rattlesnakes are also on the move, emerging from deep winter dens to their ...

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