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Planning and Sustainability

Innovation. Collaboration. Practical Solutions.

Phone: 503-823-7700

Curbside Hotline: 503-823-7202

1900 SW 4th Ave, Suite 7100, Portland, OR 97201

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Why is the climate changing?

NOTE: These pages contain historical material reflecting the EPA website as it existed on January 19, 2017. The EPA pages are not being updated and links to external websites and some internal pages may not work.