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This Week in the Watershed

Mercury pollution is harming the Chesapeake Bay and its rivers and streams. Photo courtesy iStock.

In the climate change "debate," a common refrain from deniers is that the warming we are witnessing is the result of natural variances in the climate cycle, rather than the result of record-level greenhouse gases in the atmosphere. Indeed, in many cases of environmental degradation, polluters and maintainers of the status quo refuse to recognize human's contribution to the problems in the natural world. This despite that in many cases (such as climate change), direct, clear, and incontrovertible evidence proves beyond a reasonable degree of certainty a link between man's actions and harm to the environment. 

One example of this that is impacting the Chesapeake Bay and its rivers and streams, is the proliferation of mercury in our air and waters. While mercury occurs naturally in the environment, according to the U.S. Geological Survey, sediments deposited in North American sediment cores since industrialization have mercury concentrations about 3-5 times higher than those found in older sediments. Today, human's primary exposure to mercury is through the consumption of fish. Calls to reduce mercury in our air and water have led the EPA to develop new regulations, particularly on power plants.

A recent study found that these emission controls on out-of-state power plants have greatly improved air quality in Maryland by reducing mercury pollution. While the air quality improved, fish found in Maryland rivers and streams are still contaminated with toxic levels of mercury. It appears that it will take time for the mercury already present in the environment to dissipate.

Despite the clear link between industrialization and mercury levels in our air and water, industry spokesmen still openly question the connection. The spreading of doubt and misinformation might continue, but it's clear that reasonable environmental regulations, such as those found in the Chesapeake Clean Water Blueprint, can make a dramatic difference in the environment—if nature is given enough time to respond.

 This Week in the Watershed: Mercury, Grazing, and Important Fish

  • CBF President Will Baker reflects on the water clarity throughout the Chesapeake Bay. (Huffington Post)
  • A report says islanders in the middle of the Chesapeake Bay could be the first "climate change refugees" in the continental United States. (Associated Press)
  • Emission controls required on out-of-state power plants have greatly improved air quality in Maryland. Unfortunately, Maryland's fish remain contaminated with mercury, as it will take years for the mercury already in the water to dissipate. (Baltimore Sun—MD)
  • A program was started for farmers to teach each other best practices surrounding rotational grazing. With benefits including healthier animals, increased profits, and cleaner waterways, there's a lot to gain. (WSLS—VA)
  • A record-breaking chicken farm proposed in Wicomico is raising eyebrows among environmentalists. (Daily Times—MD)
  • What really is the most important fish in the Chesapeake Bay? One study's answer might surprise you. (Bay Journal)
  • Pennsylvania is facing another obstacle in their fight for clean water—pharmaceuticals. Prescription drugs are finding their way into the rivers and streams with alarming results.  (The Sentinel—PA)

Lend Your Voice for Clean Water!

What's Happening Around the Watershed?

December 12

  • Virginia Beach, VA: With far more requests for speaker's than we have staff or time, CBF relies on its Speaker's Bureau volunteers to handle a variety of speaking opportunities. Whether you are current on the issues and ready to share our message, or just enjoy public speaking and would like to get trained, we welcome your commitment to this important and high-profile program. Join us to learn the facts and skills to share our mission to Save the Bay with local groups and organizations. Click here to register!

January 16-February 6

  • Virginia: Help restore the health of the Chesapeake Bay and Virginia's rivers by participating in CBF's Grasses for the Masses program. Participants grow wild celery, a type of underwater grass, in their homes for 10-12 weeks. After 10-12 weeks of grow-out, participants will gather to plant their grasses in select local rivers to bolster grass populations and help restore the Bay. Workshops are being held throughout Virginia. Click to find one near you!

—Drew Robinson, CBF's Digital Media Associate


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