Climate change in Idaho
Idaho emits the least carbon dioxide per person of the United States, less than 23,000 pounds a year. Idaho forbids coal-power plants. It relies mostly on nonpolluting hydroelectric power from its rivers  .
Over the last century, the average temperature near Boise, Idaho, has increased nearly 1°F, and precipitation has increased by nearly 20% in many parts of the state, and has declined in other parts of the state by more than 10%. These past trends may or may not continue into the future.
Over the next century, climate in Idaho may experience additional changes. For example, based on projections made by the Intergovernmental Panel on Climate Change and results from the United Kingdom Hadley Centre’s climate model (HadCM2), a model that accounts for both greenhouse gases and aerosols, by 2100 temperatures in Idaho could increase by 5 °F (2.78 °C) (with a range of 2-9°F) in winter and summer and 4 °F (2.22 °C) (with a range of 2-7°F) in spring and fall. Precipitation is estimated to change little in summer, to increase by 10% in spring and fall (with a range of 5-20%), and to increase by 20% in winter (with a range of 10-40%). Other climate models may show different results, especially regarding estimated changes in precipitation. The impacts described in the sections that follow take into account estimates from different models. The amount of precipitation on extreme wet or snowy days in winter is likely to increase. The frequency of extreme hot days in summer would increase because of the general warming trend. It is not clear how the severity of storms might be affected, although an increase in the frequency and intensity of winter storms is possible.
- 1 Climate Change Impacts
- 2 Action To Address Climate Change
- 3 References
- 4 External links
Climate Change Impacts
Warming and other climate changes could expand the habitat and infectivity of disease-carrying insects. Mosquitoes in Idaho can carry malaria, and some can carry western equine encephalitis, which can be lethal or cause neurological damage. Warmer temperatures could increase the incidence of Lyme disease and other tick-borne diseases in Idaho, because populations of ticks, and their rodent hosts, could increase under warmer temperatures and increased vegetation.
Idaho relies primarily on surface, but groundwater is also an important source of supply. Most of Idaho is drained by tributaries to the Columbia River, including the Spokane, Pend Oreille, Kootenai, and Snake rivers. These rivers are regulated by dams and reservoirs to reduce spring flooding and augment summer flows. Runoff in the state is strongly affected by winter snow accumulation and spring snowmelt. A warmer climate could mean less snowfall, more winter rain, and a faster, earlier snowmelt. This could result in lower reservoirs and water supplies in the summer and fall. Additionally, without increases in precipitation, higher summer temperatures and increased evaporation also would contribute to lower streamflows and lake levels in the summer. Drier summer conditions would intensify competition for water among the diverse and growing demands in Idaho.
As climate warms, production patterns could shift northward. Increases in climate variability could make adaptation by farmers more difficult. Warmer climates and less soil moisture due to increased evaporation may increase the need for irrigation. However, these same conditions could decrease water supplies.
In Idaho, production agriculture is a $2.8 billion annual industry, 60% of which comes from crops. Almost 70% of the farmed acres are irrigated. The major crops in the state are wheat, hay, barley, and potatoes. Climate change could increase wheat yields by 9-18%. Barley and hay could increase by 12%, and potato yields could fall by 18% under severe conditions where temperatures rise beyond the tolerance levels of the crop. Farmed acres could rise or fall by 10%, depending on how climate changes.
Hotter, drier weather could increase the frequency and intensity of wildfires, threatening both property and forests. Drier conditions would reduce the range and health of lodgepole and Douglas-fir forests, and increase their susceptibility to fire.
Changes would significantly affect the character of Idaho forests and the activities that depend on them.
Idaho is very rich in ecological diversity.
Climate change could exacerbate many of the problems facing ecosystems in Idaho. Although wildfires are a natural and necessary part of the ecology of western forests, changes in fire regimes under climate change have significant implications.
Climate change poses a threat to high alpine systems, and could lead to their significant decline. Local extinctions of alpine species such as arctic gentian, alpine chaenactis, rosy finch and water pipit have resulted from habitat loss and fragmentation, both of which could worsen under climate change. Whitebark pine forest could be replaced with Douglas fir. On the lower slopes, forests would give way to treeless landscapes dominated by sagebrush, Idaho fescue, and bluebunch wheatgrass.
Action To Address Climate Change
Renewable energy and propulsion
Alternative Fuels Tax
The motor fuel tax rate of $0.25 per gallon does not apply to special fuels dispensed into a motor vehicle that uses gaseous special fuels and displays a valid gaseous special fuels permit. Special fuels include compressed and liquefied natural gas, liquefied petroleum gas, hydrogen, and fuel suitable for use in diesel engines. The state excise tax on special fuels, determined on a gasoline gallon equivalent basis, still applies. Alternatively, an annual fee in lieu of the excise tax may be collected on a vehicle powered by gaseous special fuels, according to the gross vehicle weight rating of the vehicle. State government agencies are entitled to a refund of any special fuels tax paid to the vendor from which the fuel was purchased. No refund of special fuels tax shall be paid on special fuels used while idling a registered motor vehicle. Idling means a period of time greater than 15 minutes when the motor vehicle is stationary with the engine operating.
State Agency Petroleum Reduction Plan
All executive branch state agencies are required to reduce the petroleum consumption of their fleets by increasing the fuel economy of their vehicles and reducing the number of miles driven by each employee. Agencies must also give priority to acquiring hybrid electric vehicles and other fuel-efficient, low-emissions vehicles .
Neighborhood Electric Vehicle
An neighborhood electric vehicle (NEV) is defined as a self-propelled, electrically powered, four-wheeled motor vehicle that does not produce emissions and conforms to the definition and requirements for low-speed vehicles as adopted in the federal motor vehicle safety standards under Title 49 of the Code of Federal Regulations, Part 571.
Studies indicate that Wyoming has fair biomass resource potential. For more state-specific resource information, see Biomass Feedstock Availability in the United States: 1999 State Level Analysis.
Wyoming has high-temperature resources that are suitable for electricity generation, as well as direct use and heat pump applications. For more information on geothermal resources, including resource maps, visit GeoPowering the West.
Wyoming has a good hydropower resource as a percentage of the state's electricity generation. For additional resource information, check out the Idaho National Laboratory's Virtual Hydropower Prospector (VHP). VHP is a convenient geographic information system (GIS) tool designed to assist you in locating and assessing natural stream water energy resources in the United States.
To accurately portray your state's solar resource, we need two maps. That is because different collector types use the sun in different ways. Collectors that focus the sun (like a magnifying glass) can reach high temperatures and efficiencies. These are called concentrating collectors. Typically, these collectors are on a tracker, so they always face the sun directly. Because these collectors focus the sun's rays, they only use the direct rays coming straight from the sun.
Other solar collectors are simply flat panels that can be mounted on a roof or on the ground. Called flat-plate collectors, these are typically fixed in a tilted position correlated to the latitude of the location. This allows the collector to best capture the sun. These collectors can use both the direct rays from the sun and reflected light that comes through a cloud or off the ground. Because they use all available sunlight, flat-plate collectors are the best choice for many northern states.
The Renewable Energy Atlas of the West estimated the annual solar electricity generation potential in Wyoming to be 72 billion kWh, based on the following assumptions:
Rooftop and open space installed systems represent 0.5% of the total area of the state.
Solar panels occupy 30% of the area set aside for solar equipment.
The average system efficiency is 10%.
According to Wind Powering America, Wyoming has wind resources consistent with utility-scale production. There is a large area of excellent to superb resource in the southeastern part of the state north of Cheyenne. Other outstanding resource areas are in south-central Wyoming from the Colorado border north toward Casper. Additional regions with good to excellent resource are between Casper and Gillette in northeastern Wyoming and on ridge crests throughout the state. In addition, small wind turbines may have applications in some areas.
The Renewable Energy Atlas of the West estimated the annual wind electricity generation potential in Wyoming to be 883 billion kWh. The estimate excludes 100% of the following areas, which are assumed to be infeasible for wind development:
- Landforms – land with a slope of greater than 20%.
- Environmentally sensitive areas.
- All National Park Service lands.
- All fish and wildlife lands.
- All Forest Service or BLM lands with "special" designations, such as national recreation areas and national wilderness areas.
- All bodies of water.
- Urban areas.
Energy efficiency means doing the same work, or more, and enjoying the same comfort level with less energy. Consequently, energy efficiency can be considered part of your state's energy resource base - a demand side resource. Unlike energy conservation, which is rooted in behavior, energy efficiency is technology-based. This means the savings may be predicted by engineering calculations, and they are sustained over time. Examples of energy efficiency measures and equipment include compact fluorescent light bulbs (CFLs), and high efficiency air conditioners, refrigerators, boilers, and chillers.
Saving energy through efficiency is less expensive than building new power plants. Utilities can plan for, invest in, and add up technology-based energy efficiency measures and, as a consequence, defer or avoid the need to build a new power plant. In this way, Austin, Texas, aggregated enough energy savings to offset the need for a planned 450-megawatt coal-fired power plant. Austin achieved these savings during a decade when the local economy grew by 46% and the population doubled. In addition, the savings from energy efficiency are significantly greater than one might expect, because no energy is needed to generate, transmit, distribute, and store energy before it reaches the end user.
Reduced fuel use, and the resulting decreased pollution, provide short- and long-term economic and health benefits.
- ^ http://seattletimes.nwsource.com/html/nationworld/2003732690_carbon03.html
- ^ http://hydropower.id.doe.gov/resourceassessment/index_states.shtml?id=wy&nam=Wyoming
- ^ http://www.yellowstonetetoncleanenergy.org
- ^ http://www.tvcleancities.org
- ^ http://gov.idaho.gov/mediacenter/execorders/eoarchives.htm
- Reducing Greenhouse Gases (Idaho Department of Environmental Quality)
- Carbon Sequestration on Idaho Agriculture and Forest Lands
- Climate change news about Idaho (NewWest).
- I CAN (Idaho Climate Action Network).
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