Podcasts

Produced in collaboration with WAMC Northeast Public Radio, Earth Wise focuses on raising awareness about the science that underpins environmental issues. New topics are featured daily, with coverage on climate change, energy, sustainable living, agriculture, and threats to air, water, and wildlife.

Airs Monday through Friday at 11:10 a.m. and 4:04 p.m. on WAMC.

Access the complete archive of Earth Wise podcasts:
www.earthwiseradio.org.

Selected Podcasts

Summertime ozone

Podcast

Human activities are not direct sources of a lot of ozone, but ozone concentrations increase to markedly unhealthy levels in many areas during the summer. About 30 years ago, atmospheric chemists solved this mystery.

asian tiger mosquito

Mosquitoes in urban areas

Podcast

Now that summer is finally on the horizon, so too is mosquito season. More than an annoyance, mosquitoes can spread serious illnesses, like West Nile virus and Dengue.

What's all the talk about mute swans?

Podcast

In the late 1800s, mute swans were brought from Europe to the eastern U.S. to enhance the beauty of ponds on private estates.

Dirty drinking water

Podcast

EPA and U.S. Geological Survey scientists analyzed treated water samples from 25 U.S. utilities. They found that more than 1/3 contained chemicals not regulated by the federal Safe Drinking Water Act.

Let's quit carping about it

Podcast

In the 1960s, grass carp were brought to the U.S. from Asia to control weeds in southern fish-farming operations. Unfortunately, like so many other exotics, these fish escaped into the wild, and have been moving northward.

A mosquito fever expands its range

Podcast

A mosquito-borne virus that causes fever, headaches, and severe joint pain has spread to the Caribbean. Experts fear it's only a matter of time before it makes its way to the U.S. 

Salty streams and rivers

Podcast

By the looks of it, we're in for quite a winter this year. Here in the Northeast, we've seen several heavy snowfalls, freezing temperatures, and icy roads.

Invaders underfoot in our forests

Podcast

Despite their familiarity, earthworms are an invasive species in America's northern temperate forests. They arrived in the mid-1800s, with the arrival of European settlers.

Let's talk about ammonia

Podcast

Most of us are familiar with ammonia as an irritating gas that is emitted from window-cleaning fluids. It is a great way to cut through grease that has condensed on glass.

Tracking disease in a warming world

Podcast

Understanding how infectious diseases respond to climate change would help public health officials and environmental managers predict and mitigate disease impacts.

The hidden cost of antibacterial products

Podcast

Triclosan, a synthetic antibacterial used in personal care products, is fueling the growth of resistant bacteria in streams and rivers.

Dams complicate river management

Podcast

Managing fish in human-altered rivers is a challenge because their food webs are sensitive to environmental disturbances.

Warming the tundra

Podcast

A lot of dead plant material is stored in the tundra soils of the far north. Most of it is frozen in permafrost, and inaccessible to the microbes that normally decompose organic matter in soils.

Powassan encephalitis

Podcast

The number of tick-borne illnesses reported to the U.S. Centers for Disease Control and Prevention is on the rise. Lyme disease leads the pack, with some 35,000 cases reported annually. 

The signal before the collapse

Podcast

What do earthquakes, heart attacks, seizures, and the collapse of stock markets and fisheries have in common? They're all examples of what scientists call "tipping points" or "regime shifts."

How dams can cause fish declines

Podcast

The Glen Canyon Dam was the last big dam built in the United States. Spanning the Colorado River above the Grand Canyon, it provides hydropower for the region and regulates the flow of water. Until the dam was built, the river would experience spring floods during snowmelt followed by low flow in the summer, especially during drought years. Now water below the dam flows at about the same rate year-round.

The Clean Water Act's 40th birthday

Podcast

Just four decades ago Cleveland’s Cuyahoga River was known for its flammability. It, and countless other rivers, streams, and lakes were used as dumping grounds for sewage and commercial waste. 

Why should we care about one endangered fish?

Podcast

The humpback chub is a rather homely fish that lives only in the Colorado River. It is federally listed as protected under the Endangered Species Act.

Bad news for maple syrup and moose

Podcast

Following an exhaustive review of more than fifty years of long term data on environmental conditions at the Hubbard Brook Experimental Forest in the White Mountains of New Hampshire, the results are clear: spring is advancing and fall is retreating.

Let's not put the last log on the fire

Podcast

In an attempt to wean the nation from coal—an unhealthy source of energy that drives global warming, several policy groups have suggested switching to wood. Existing coal-fired power plants could be converted to burn wood with relatively little cost and expense. And trees have the benefit of being a renewable resource.

Few ecosystems on our planet are as mysterious and misunderstood as groundwater

Podcast

Despite the fact many of us drink groundwater every day, and all of us eat food irrigated by groundwater, few people know where it comes from or how to protect it.

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