This study uses simulation-based life cycle assessment (LCA) together with a commercial flowsheet simulation program to compare several copper smelting technologies against each other when producing metallic blister copper from sulfide copper ore.
The decision is to adjust the 2007 Interim Guidelines for Lower Basin shortages and coordinated operations of Lake Powell and Lake Mead as described under Section IX of this 2024 Near-term Colorado River Operations ROD.
The following two new species of land snails were taken on a collecting trip in Arizona during October 1949 by M. L. Walton and the author. They belong to the families Camaenidae and Polygyridae, respectively.
An extraordinary drought in the West in drying up the Colorado River and draining the nation's largest reservoirs - Lake Mead and Lake Powell. And amid the overuse of the river and the aridification of the region, the federal government is implementing new mandatory water cuts and asking states to devise a plan to save the water basin.
This updated memo quantifies Resolution’s estimated Scope 2 (indirect) GHG emissions associated with Resolution’s annual electricity use and accounts for the following GHGs: CO2, methane (CH4), and nitrous oxide (N2O).
This land and resource management plan (referred to as the forest plan throughout this document) guides the Tonto National Forest in fulfilling its stewardship responsibilities to best meet the current and future needs of the people and communities we serve.
The purpose of this process memorandum is to provide a consistent acreage, broken down by project component or facility, alternative, and ownership (private, state, federal).
R3-4-245. Noxious Weeds. Definitions including "Class A Noxious Weed", "Class B Noxious Weed", "Class C Noxious Weed" and list with common and scientific names.
