Connect with us

Hi, what are you looking for?

CleanTechnica
Featured Image courtesy of Earth Observatory, NASA, Smoke Replaces Ice at Lake Winnipeg.On May 7 and May 14, 2021, winter ice still covered most of Lake Winnipeg and the smaller lakes nearby, and walleye were starting to show up on fishing hooks. By May 19, most of the ice was gone, temperatures hovered between 30° and 33° Celsius (86° to 91° Fahrenheit), and the parched landscape was blanketed with smoke and fire. It seemed like Canada’s Manitoba Province had jumped right from winter to summer.

Climate Change

Lakes Are Losing Oxygen Due To Climate Change

Climate change is contributing to falling oxygen levels in lakes across the world, according to a new study published in the journal Nature yesterday. Previous studies have shown falling oxygen levels in individual lakes, but this study is the first to look at so many lakes globally, as researchers gathered data from nearly 400 lakes in the United States, Canada, Europe, Asia, and South America.

The study found that in the past 40 years, oxygen levels have fallen nearly 19% in deep waters and 5% in surface waters, which is up to 9 times faster than the oxygen loss in oceans. Low oxygen levels in lakes can suffocate wildlife and threaten drinking water quality. In some lakes, oxygen levels increased at the surface, likely because warmer temperatures can drive algal blooms, which temporarily release oxygen.

This oxygen increase does not benefit deep waters, though, and algal blooms can release toxic chemicals and produce methane, further contributing to climate change. “This study proves that the problem is even more severe in fresh waters [than in oceans], threatening our drinking water supplies and the delicate balance that enables complex freshwater ecosystems to thrive,” said Curt Breneman, dean of science at the Rensselaer Polytechnic Institute, which led the study.

Sources: The GuardianAssociated PressE&E $, Sydney Morning HeraldMinnesota Public RadioAxios

Article courtesy of Nexus Media.

 
Appreciate CleanTechnica’s originality and cleantech news coverage? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.
 

Don't want to miss a cleantech story? Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!
 

Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.
Advertisement
 
Written By

A syndicated newswire covering climate, energy, policy, art and culture.

Comments

You May Also Like

Climate Change

Deep waters in temperate climate lakes have already lost almost 20 percent of their oxygen supply. Originally published on Nexus Media. By Kaitlin Sullivan On a...

Batteries

Battery news! Get your battery news here! Potassium and proton batteries are on the way.

Agriculture

Aquatic ecologist John A. Downing happily remembers childhood holidays at his family’s vacation home at Wabana Lake, near Grand Rapids, Minnesota. The lake was...

Climate Change

Climate change, through the impacts of increasingly extreme rainfall events and melting permafrost on the organic matter content of various bodies of water, may...

Copyright © 2021 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.