Category Archives: Environmental Issues

Bald Eagles and Lead

Environmental Poisons, Threats to wildlife,

There is a new study out from Cornell concerning bald eagles and lead.  The short version: Hunters kill land mammals using lead shot, field dress the prey, and the remains are scavenged by bears, badgers, and everybody else including Bald Eagles. The study by Brenda Hanley and others, published in Wildlife Management, links the lead shot ingested by scavenging eagles to stunted growth.  Stunted, the eagles’ physiological buffer against disease or periods of food stress is reduced.

This lead poisoning of wildlife by hunters’ activity probably applies to all of the scavengers of lead ammo using hunters’ waste, but in this study, only eagles were addressed.

Krysten Schuler, one of the study’s authors, says, “Hopefully, this report will add information that compels hunters, as conservationists, to think about their ammunition choices.  Even though the population seems like it’s recovered, some perturbation could come along that could cause eagles to decline again.”

A press release from Cornell is here, and the original study is here.

Lead is a poison at any level, and we continue to put it in our environment, affecting other animals, as well as humans.  If you think this should be addressed, please bring this resolution to your precinct caucuses in order to give us (lead free) ammunition to help compel our legislators to address lead.  If you are reading this after February 1st, 2022, you can still contact your legislators in the Minnesota House and Senate and encourage them to get the lead out!

(The rest of our 2022 resolutions are here.)

 

 

 

 

Protect Minnesota’s Waters from Copper Sulfide Mining

Sulfide Mining

There are two things you can do right now to help protect some of Minnesota’s waters from copper sulfide mining.

1- Update Minnesota’s Laws to Protect our Waters from the Dangers of Sulfide Mining

A change to these laws could ban sulfide mining in the Rainy River Headwaters. A 30-day public comment period is open until December 8, 2021! Tell the DNR that our laws do not adequately protect our waters. 

Comment directly to the DNR.   Here is suggested text for a comment.

Department of Natural Resources,

The current restrictions on nonferrous mining in the Boundary Waters Canoe Area Wilderness (BWCAW) are not adequate to protect the BWCAW from pollution, impairment, or destruction. I strongly urge your department to extend further restrictions on mining to all of the Rainy River Headwaters.

The risks from non-ferrous mining are vastly different from the traditional iron mining in Minnesota. Non-ferrous mining is the process of extracting trace amounts of copper, nickel and other metals from sulfide-bearing ores. This process produces sulfuric acid, which is the same as battery acid. In addition to acidifying lakes and rivers, sulfuric acid leaches out heavy metals such as mercury, lead, arsenic, and other toxins from the rock to produce acid mine drainage (AMD). Sulfate discharge to very freshwaters, such as those found in northern Minnesota, also unleashes a cascade of damaging ecosystem effects. This type of mining is so problematic that there has never been a sulfide mine anywhere in the world that did not contaminate surrounding water sources. The extreme threat to the Wilderness from this type of mining was confirmed by a 2016 U.S. Forest Service (USFS) study that found that the risks associated with the proposed Twin Metals mine were so great that USFS denied the project’s permit application based on the best available scientific evidence.

Additionally, as water does not follow lines on a map set by humans, these restrictions on mining must be extended to the entire Rainy River watershed. What happens upstream, happens downstream and the risk of catastrophic pollution failure or chemical leaching from a nonferrous mine upstream of the BWCAW, like the proposed Twin Metals Mine, is far too great to be allowed on the edge of the pristine natural resources of the BWCAW. The environmental danger posed by non-ferrous mining in the Rainy River watershed is even more acute because it exposes the singularly beautiful and pristine, but very fragile, BWCAW and adjacent areas to the threat of irreversible environmental harm caused by AMD and sulfate pollution.

The federal and state government’s intent to protect the BWCAW for its unique wilderness characteristics was the essential motivation behind the protections the BWCAW currently receives as a federal Wilderness Area. To ensure the Wilderness remains free from pollution as originally intended, the watersheds that flow through the BWCAW must also remain free from pollution. Protection must be extended to the Rainy River Headwaters watershed by prohibiting non-ferrous metallic mineral mining in these areas.

2- Support a 20-year Federal Moratorium on Sulfide Mining near the Boundary Waters

The Biden Administration recently announced that the US Forest Service submitted a mineral withdrawal application to the Bureau of Land Management (BLM) which would provide for a 20-year moratorium on copper-sulfide mining on 225,000 acres of federal land in the Rainy River Watershed. The 2-year environmental study began immediately with the announcement, and a 90-day comment period is underway until January 18, 2020!

You can comment through Friends of the Boundary Waters website, or submit your own unique comments to the BLM. 

 

To learn more about the Tamarack mine, a newly emerging issue of concern, click here.