Late snowfall can have a dramatic effect on dissolved oxygen levels in a body of water, even one that is already frozen.

Permafrost is a layer of soil beneath the Earth’s surface which has remained frozen for at least two years. Varying in depth from one meter to more than 1,000 meters, permafrost accounts for almost a quarter of all Northern Hemisphere landmass.

The Association for the Sciences of Limnology and Oceanography (ASLO) held its 2019 meeting, Planet Water Challenges and Successes, from February 23rd to March 2nd in San Juan, Puerto Rico.

On April 17th, 1969, the Cuyahoga River caught fire, making plain what effect 150 years of industrial degradation was having on the American landscape. A heartland river, vital to the magnificent Great Lakes ecosystem, had been polluted to the point of combustion.

When the 2018 Thanksgiving week rains finally came to help firefighters contain the Camp Fire, the most destructive and deadliest wildfire in California’s history, Butte Creek ran dark brown.