Report regarding legislative actions that explicitly address climate change issues. The provisions in these bills fall into six general categories: carbon price (i.e., tax or fee) on greenhouse (GHG) emissions; other mechanisms intended to encourage mitigation of GHG emissions (e.g., sequestration of emissions); research on climate change-related issues; adaptation activities related to expected climate change impacts; support for international climate change-related activities; and action that limits or prohibits climate change-related authorities, efforts, or considerations.