Ecosystem changes following loss of great white sharks

A new study has documented unexpected consequences following the decline of great white sharks from an area off South Africa. The study found that the disappearance of great whites has led to the emergence of sevengill sharks, a top predator from a different habitat.

Sand from glacial melt could be Greenland’s economic salvation?

As climate change melts Greenland’s glaciers and deposits more river sediment on its shores, an international group of researchers has identified one unforeseen economic opportunity for the Arctic nation: exporting excess sand and gravel abroad, where raw materials for infrastructure are in high demand.

From paradise to landfill: beloved California beach covered in trash

After a trio of winter storms dropped inches of rain on the area, the beach looked more like a landfill than a pristine paradise. That’s because Seal Beach lies at the mouth of the San Gabriel river, which drains runoff from more than 50 cities in the Los Angeles river basin.

Q&A: The Nature of Value vs the Value of Nature

Humans have long had a varied and complicated relationship with nature—from its aesthetic value to its economic value to its protective value. What if you could measure and analyse these values? One group is trying to do just that.