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Environmental Policy Collection
Vehicle Greenhouse Gas Emissions Standards
Date: 2010
Creator: Pew Center on Global Climate Change
Description: This map shows states that have adopted or are planning to adopt California's vehicle standards.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc31159/
Vision 2050: An Integrated National Transportation System
Date: February 2001
Creator: United States. Federal Transportation Advisory Group.
Description: This document calls for major improvements to the United States transportation infrastructure. The vision includes improvements in energy independence, environmental compatibility, safety, cost, and performance.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc25998/
VMT-Related Policies and Incentives
Date: 2010
Creator: unknown
Description: This map shows states with policies to curb the climb of vehicle miles traveled (VMT) by encouraging carpooling, alternative transportation, and compact land development.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc31156/
Waste Disposal Act
Date: June 2, 2004
Creator: China (Republic : 1949- )
Description: This law was passed by the government of the Republic of China (Taiwan) to improve environmental sanitation and public health through the regulation of waste disposal.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc25994/
Water Quality Aspects of an Intermittent Stream and Backwaters in an Urban North Texas Watershed
Date: August 2002
Creator: Taylor, Ritchie Don
Description: Pecan Creek flows southeast through the City of Denton, Texas. Characterized as an urban watershed, the basin covers approximately 63.5 km2. Pecan Creek is an intermittent stream that receives nonpoint runoff from urban landuses, and the City of Denton's wastewater treatment plant, Pecan Creek Water Reclamation Plant, discharges effluent to the stream. Downstream from the City of Denton and the wastewater treatment plant, Pecan Creek flows about 6,000 m through agricultural, pasture, and forested landscapes into Copas Cove of Lake Lewisville, creating backwater conditions. Pecan Creek water quality and chemistry were monitored from August 1997 to October 2001. Water quality was influenced by seasonal, spatial, climatic, and diurnal dynamics. Wastewater effluent discharged from the Pecan Creek Water Reclamation Plant had the greatest influence on water quality of the stream and backwaters. Water quality monitoring of Pecan Creek demonstrated that dissolved oxygen standards for the protection of aquatic life were being achieved. Water quality modeling of Pecan Creek was completed to assess future increases in effluent flow from the Pecan Creek Water Reclamation Plant. Water quality modeling indicated that dissolved oxygen standards would not be achieved at the future effluent flow of 21 MGD and at NPDES permitted loadings. Model results ...
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc3206/
Water Quality Mapping on Lake Texoma USA
Date: December 2002
Creator: Mabe, Jeffrey A.
Description: The primary objective of this study was to develop and evaluate a system capable of rapid, continuous collection of water quality and locational data on Lake Texoma. Secondary objectives included developing monthly distribution maps for chlorophyll-a, turbidity, and specific conductivity in Lake Texoma and investigating the spatial and temporal relationships between these common water quality indicators. A modified YSI multiprobe was used to develop a system capable of surveying the lake within 4 days with samples at 330 to 400 meter intervals. Data generated with this system compared favorably with previous studies of Lake Texoma. Two sets of raster format maps were developed for the monthly distributions of chlorophyll-a, turbidity, and specific conductivity across the lake. Spatial and temporal relationships generally took the form of decreasing gradients running from the lake arms towards the Main Lake Zone in the case of chlorophyll-a and turbidity. Or, in the case of specific conductivity, a decreasing gradient from the Red River arm to the Washita River arm. All three water quality indicators were strongly influenced by river discharge levels.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc3332/
Water Resources and Climate Prediction: Linking Science with Decisions
Date: 2008
Creator: U.S. Global Change Research Program
Description: This brochure summarizes research that focuses on the scientific ability to predict climate on seasonal and year-to-year timescales and the opportunity to incorporate such information into water resource management decisions.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc29382/
WCRP IPY activities
Date: March 11, 2008
Creator: World Climate Research Program
Description: On 1 March 2007, the International Polar Year 2007/2008, one of the most ambitious coordinated international science programmes was launched. Many of the IPY leaders and participants are members of WCRP projects and groups. Climate issues are at the forefront of the majority of IPY studies. This chart is a visualization of International Polar Year activities at the World Climate Research Program.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc11971/
Weather and Climate Extremes in a Changing Climate : Frequently Asked Questions
Date: 2008
Creator: Climate Change Science Program (U.S.)
Description: This brochure corresponds with the Weather and Climate Extremes in a Changing Climate Synthesis and Assessment Report by the U.S. Climate Change Science Program. It highlights observed changes and likely projections in North American weather, and how changes in North American weather are likely to have an adverse economic effect.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc29327/
Weather and Climate Extremes in a Changing Climate. Regions of Focus: North America, Hawaii, Caribbean, and U.S. Pacific Islands
Date: June 2008
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research.
Description: This document is part of the Synthesis and Assessment Products described in the U.S. Climate Change Science Program (CCSP) Strategic Plan. Changes in extreme weather and climate events have significant impacts and are among the most serious challenges to society in coping with a changing climate. This Synthesis and Assessment Product (SAP 3.3) focuses on weather and climate extremes in a changing climate. Many extremes and their associated impacts are now changing. For example, in recent decades most of North America has been experiencing more unusually hot days and nights, fewer unusually cold days and nights, and fewer frost days. Heavy downpours have become more frequent and intense. Droughts are becoming more severe in some regions, though there are no clear trends for North America as a whole. The power and frequency of Atlantic hurricanes have increased substantially in recent decades, though North American mainland land-falling hurricanes do not appear to have increased over the past century. Outside the tropics, storm tracks are shifting northward and the strongest storms are becoming even stronger. It is well established through formal attribution studies that the global warming of the past 50 years is due primarily to human-induced increases in heat-trapping gases. Such ...
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc12026/