Portland, Oregon, prides itself on being very focused on the environment. So many people were shocked to discover that certain neighborhoods contain high levels of toxic metals. Scientists made the discovery when ordinary moss samples taken from all over town revealed the unexpected contamination. Special correspondent Cat Wise reports on how it led to some significant changes in the city.
Portland, Oregon, prides itself on being very focused on the environment. So many people were shocked to discover that certain neighborhoods contain high levels of toxic metals. Scientists made the discovery when ordinary moss samples taken from all over town revealed the unexpected contamination. Special correspondent Cat Wise reports on how it led to some significant changes in the city.
How moss revealed undetected air pollution
How moss revealed undetected air pollution
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Product Details
| BN ID: | 2940171956479 |
|---|---|
| Publisher: | NewsHour Productions |
| Publication date: | 10/12/2016 |
| Edition description: | Unabridged |
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