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Rise In Covid-Related Deaths | Northern Ireland News, 13/08/2021
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Blocked Drain Causes Flooding At Belfast Bar | Northern Ireland News, 13/08/2021
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Community Garden in Killeen helps fight hunger
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UCLA-led study explains how much damage is caused by treated sewage
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Algae blooms in Newport Bay, off the coast of Southern California. UCLA researchers found that nitrogen in treated sewage is driving a massive growth of oceanic algae, which could have lasting effects on the region’s ecosystem. Sonia Aronson |
May 17, 2021
At a glance, the sparkling waters of the Southern California coast appear healthy. But a deeper dive into the water’s chemical composition reveals high levels of algae and low levels of oxygen.
The estimated 23 million people who live along the coast from Tijuana, Mexico, to Santa Barbara, California, produce tons of sewage each day. That sewage is treated by water treatment facilities to remove some of the potentially harmful chemicals and then discharged deep below the surface of the ocean.
Director’s Lecture Series
Carya illinoinensis).
Ned Friedman
Each winter, Director William (Ned) Friedman and the Arnold Arboretum present the Director’s Lecture Series, featuring nationally recognized experts addressing an array of topics related to Earth’s biodiversity and evolutionary history, the environment, conservation biology, and key social issues associated with current science.
Visit Past DLS Series to see descriptions of past lectures.
2021 Director’s Lecture Series
Pecan: The Intersection of Biodiversity and Human Diversity
In the 2021 Arnold Arboretum Director’s Lecture Series, three gifted writers examine the entwined histories of the pecan tree and humans. From the migrations of this quintessential American tree to its place in Indigenous culture and a searing memory of enslavement, James McWilliams, Robin Wall Kimmerer, and Tiya Miles will explore the deeper meanings of human relationships with trees.