'A harbinger of what's to come:' NASA satellites show massive drop in global freshwater levels

In February, wildfires fueled by severe drought consumed forests, grasslands and wetlands in northeastern Argentina, burning an estimated 40% of the Ibera National Park.

Earth's total fresh water has plummeted to an alarming new low, and it could be a sign that climate change is pushing the world into a dangerous phase of global drying, according to a new study.

Since 2015, our planet's lakes, rivers and aquifers have lost 290 cubic miles (1,200 cubic km) of fresh water, the equivalent of emptying Lake Erie two and a half times.