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Announcing Sacred Mounds, a novel of Magical Realism and Historical Fantasy from Jim Metzner, with a foreword by Hutke Fields, principal chief of the Natchez Nation.
Cyclonic hordes of insects, a telepathic despot, body-swapping sex - just a few of the surprises Salvador Samuels encounters when he is swept back to pre-colonial times, walking in the moccasins of a blind Indian - who, in turn, has been transported into Salvador's body in present-day America. Sacred Mounds Book Cover Four hundred years apart, they are bound by a mission to rescue our world, aided by the mysterious presence of the mounds. Thousands of these ancient earthworks once dotted the landscape of North America. We still don't know why they were created. Sacred Mounds suggests they are as important today as when they were made over a thousand years ago. Sacred Mounds weaves the stories of two men, each a stranger in a strange land. With the help of two remarkable women, they must find a way to save our planet and return home.
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A Recipe for Algae Blooms?: The Pulse of the Planet daily radio program offers free legal online mp3 downloads, exploring the world of sound in nature, culture and science, with audio adventures, world music, extraordinary sound portraits, science diaries, and nature ring-tones; an amazing sonic experience.

Airdate: Feb 13, 2018
Scientist: Christine Ogilvie Hendren

A Recipe for Algae Blooms?

A Recipe for Algae Blooms?
Recent findings suggest that fertilizers together with nanoparticles can lead to algae blooms.

A Recipe for Algae Blooms?

Ambience: Wetlands

Nanoparticles - tiny bits of matter, now found in drugs and other products, are finding their way into our ecosystems and water supplies, and scientists are investigating their possible effects. A recent finding is linking nanoparticles, fertilizers and algae blooms. I'm Jim Metzner and this is the Pulse of the Planet.

Hendren: in a regular ecosystem, there was not much change with the addition of the nanoparticles, but in some ecosystems that had a lot of extra nutrients, like you might see in waters near agriculture lands where there are fertilizers - in those systems, there were a lot of changes in the growth rates of the plants that were in those ecosystems when nanomaterials were added.

Christine Ogilvie Hendren is the Executive Director of the Center for the Environmental Implications of Nanotechnology at Duke University. A team of scientists at the Center is investigating what happens when nanoparticles and fertilizer find their way into an ecosystem.

Hendren: The most obvious change was in the ecosystems with nutrients enriched, there became some floating bits of algae that formed at the surface of the waters and this really changes the clarity of the water and it changes how much the plants grow overall in the system.
The interesting thing here is that it wasn't just the gold nanoparticles or just the extra nutrients. It was the combination of these two things in the systems that caused these algae to bloom and fill the waters.

Pulse of the Planet is made possible in part by the Center for Earth and Environmental Nanotechnology and the National Science Foundation.