Groundwater in the Arctic is delivering more carbon into the ocean than was previously known
A relatively small amount of groundwater trickling through Alaska's tundra is releasing huge quantities of carbon into the ...
Ancient signs of lead pollution point to Roman takeover of Greece
The expansion of the Roman empire to Greece 2,100 years ago coincided with a rise in lead pollution as a by-product of an increased demand for metals, according to some of the earliest traces of of ...