The Kirtland’s warbler, Portage Creek cleanup and melting glaciers: this week in environmental news

By Sally Zimmerman, MNA Intern

Every Friday, MNA shares recent environmental news stories from around the state and country. Here’s some of what happened this week in environmental and nature news:

The Kirtland's warbler. Photo courtesy of Wikimedia Commons

The Kirtland’s warbler. Photo courtesy of Wikimedia Commons

Kirtland’s warbler grant boosts effort to end endangerment (Great Lakes Echo): A federal grant of $170,000 is going toward planting two million jack pine seedlings in Northeast Michigan. This is the only habitat the Kirtland’s warbler can nest in. The effort to save the Kirtland’s warbler has been going on for 40 years. The habitat in Northeast Michigan contains 98% of the species’ population, spanning across the top of the Lower Peninsula and into the Upper Peninsula. There is even a possibility that the bird will be taken off the endangered species list.

PCB cleanup in Portage Creek near Kalamazoo River done, ahead of schedule and millions under budget (MLive): The U.S. Environmental Protection Agency has worked to remove all the polychlorinated biphenyls, or PCBs, from Portage Creek. The project ended earlier than anticipated and way under budget. Other areas of the Kalamazoo River Superfund will begin to be cleaned up with the extra time and money. The EPA removed almost 19,000 cubic yards of PCB-contaminated sediment.

Yosemite’s largest ice mass is melting fast (LA Times): Scientists believe Lyell Glacier in Yosemite National Park will be gone in 20 years. This glacier is a key source of water in the park and has shrunk 62% over the past 10 years. Lyell has also lost 120 vertical feet of ice. The big question is what will happen to ecological systems surrounding the shrinking and vanishing glaciers. Ken MacLeod, a professor of geological sciences at the University of Missouri, said the earth will eventually become ice-free if carbon dioxide levels continue to rise.

Extend California’s new earthquake early warning system, says scientist (Mother Nature Network): California will be the first state to get an earthquake early warning system, which is designed to detect the first strong pulse of an earthquake. This new system will cost about $80 million to build in California and run for five years. If the system was extended north to Oregon and Washington, it would cost an additional $120 million. These west coast states are in danger of magnitude-9.0 earthquakes from the Cascadia subduction zone.

Mercury will rise in Pacific fish, study finds (Mother Nature Network): Researchers from Michigan and Hawaii have studied how mercury ends up in species of North Pacific fish for years. They have discovered that mercury levels in these fish is likely to continue rising for decades. Researchers found that the mercury first traveled by air, and then entered the oceans when it rained. These findings could help efforts to curb mercury emissions.

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Bald eagles, decreasing lake levels and an illegal fire: this week in environmental news

By Sally Zimmerman, MNA Intern

Every Friday, MNA shares recent environmental news stories from around the state and country. Here’s some of what happened this week in environmental and nature news:

A bald eagle. Photo courtesy of Wikimedia Commons

A bald eagle. Photo courtesy of Wikimedia Commons

Bald eagles: A conservation success story (Mother Nature Network): Bald eagles in the United States are making a recovery. A pesticide called Kepone nearly wiped out the species in the 1960s and 1970s. Since then, the bald eagle has slowly been making a recovery, and was taken off the endangered list in 2007. Invasive species and other pesticides still threaten the bald eagle, but restoration efforts are ongoing. Bald eagles reside all across the United States, but are thriving the most along the James River in Virginia.

Great Lakes panel still waiting for legislative action on lake levels (Journal Sentinel): The Great Lakes Commission is still waiting on a request passed in 2007 to have the U.S. and Canadian governments figure out how to slow down the water flow in St. Clair River, which is heavily dredged. This would raise water levels on Lake Michigan and Lake Huron. The water levels of these lakes today is almost two feet lower than they would be if not for human interaction in St. Clair River. Some officials suggest an adjustable system that would allow the water flow to open or slow down on the river.

USFS: Hunter caused huge wildfire near Yosemite (Detroit Free Press): An illegal fire set by a hunter in Yosemite National Park is what caused the massive wildfire that covered 371 square miles and cost $81 million to contain. The hunter has not yet been arrested, as investigations are still going on. The U.S. Forest Service had banned fires in Yosemite National Park outside of controlled camping areas because of the high risk of wildfire. Officials say the wildfire is now 80 percent contained, having destroyed 111 structures since it started.

Climate change may speed up forests’ life cycles (Science Daily): A study conducted by a Duke University team suggests that in response to global warming, the life cycles of tree species are speeding up. One professor at Duke University, James S. Clark, said because of climate change, there are longer growing seasons for the trees and hotter temperatures. Studies conducted on 65 tree species in the 31 eastern states of the U.S. suggest that there is a higher rate of turnover in warmer climates. There are more young trees. Scientists believe eventually trees will migrate to cooler climates by seed dispersal.

Pollution in Florida’s Lake Okeechobee swells to near-disaster levels (Mother Nature Network): Lake Okeechobee in south Florida is one of the largest lakes in the United States, and is also one of the shallowest. At nine feet deep on average, the lake is potentially an environmental disaster because of its rising water level. Heavy downpour has caused the lake to rise to 15.5 feet, which some fear is too high. Already, the inflated lake has sent polluted runoff into nearby water systems. The polluted runoff is assisting the growth of toxic algae, which can kill many freshwater organisms. The pollution in the lake is also hurting tourism to the area and real estate prices.