Minnesota s Chippewa National Forest is home to most of the world s population of goblin ferns. But time may be running out for the ancient ferns as surrounding forest floors are destroyed by a voracious invader: Earthworms.
The Great Lakes hold about one-fifth of the Earth s fresh water, but a new report indicates they re getting saltier - and says that s reason for concern. Lake Michigan used to sit at a salinity level of one to two milligrams of chloride per liter of lake water. Now, that concentration has risen to nearly 15 milligrams per liter. .
A fund created seven years ago in the wake of Clark County s violation of the Clean Water Act is helping improve salmon habitat and cleaning up stormwater in the Columbia River. Clark County was sued more than a decade ago for approving weaker pollution regulations for entities like big box stores and subdivisions. After losing in court, the county agreed to one of the largest citizen-enforcement penalties in Washington state history: $3 million. .
CHEYENNE, Wyo. Wyoming and other western states are projected to see multiple years in a row without any snow as soon as 35 years out if efforts to rein in fossil-fuel emissions fail to meet global targets, according to a new report. Almost 75% of water use in western states comes from snowpack. .