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Federal Judge rules that Washington State must regulate refinery GHG emissions under State Implementation Plan

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A lawsuit against the agencies, filed by the Washington Environmental Council and Sierra Club in March, claimed that the state agencies had violated their obligation under Washington’s State Implementation Plan (SIP) to determine and impose “reasonably available control technologies” on refineries to control greenhouse gas emissions.

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California ARB and NOAA Collaborating in $20M Research on Interaction of Air Pollution and Climate Change; One Atmosphere Approach

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These connections arise because in many cases the agents of concern are the same, and in many cases the sources of the agents are the same or intimately connected.For example, surface ozone is both an air pollutant and a greenhouse gas. The complex roles that ozone and aerosols play in the atmosphere provide examples of such trade-offs.