Oregonian: Multnomah and Clackamas County officials have pledged to fight global warming by reducing greenhouse gas emissions 80 percent by 2050. Each board of commissioners passed resolutions last week codifying the effort, which will begin with an inventory of emissions generated by county operations. With the resolution, the counties became part of the Sierra Club’s Cool Counties Climate Stabilization Declaration. The two counties are the first in Oregon to sign onto the initiative. …