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For Educators
- In the Classroom
- Primary Source Packets
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©2020 Portland State University and the Oregon Historical Society

The Oregon Historical Society is a 501(c)(3) non-profit organization. Federal Tax ID 93-0391599

anthropogenic climate warming

Anthropogenic climate warming is the warming of the planet caused by human activity.

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©2020 Portland State University and the Oregon Historical Society

The Oregon Historical Society is a 501(c)(3) non-profit organization. Federal Tax ID 93-0391599

©2020 Portland State University and the Oregon Historical Society

The Oregon Historical Society is a 501(c)(3) non-profit organization. Federal Tax ID 93-0391599