pulations are forced to relocate inland or coastal grain export terminals important to the Montana economy must be moved.
 Dehydration, or the excessive loss of body water, can have many causes, including heat exposure, kidney disease, and diseases of the gastrointestinal tract that cause vomiting or diarrhea.
 Figure 2-1 provides a map showing and naming Montana’s 56 counties.
 Both heat index and general circulation models are described in Section 2.
 See Appendix A for a complete explanation of socioeconomic variables and their weighting to derive a heat vulnerability index.
 According to the US Environmental Protection Agency (USEPA undated): “Heat islands occur on the surface and in the atmosphere. On a hot, sunny summer day, the sun can heat dry, exposed urban surfaces, such as roofs and pavement, to temperatures 50–90°F (27–50°C) hotter than the air, while shaded or moist surfaces—often in more rural surroundings—remain close to air temperatures. Surface urban heat islands are typically present day and night, but tend to be strongest during the day when the sun is shining.”
 The USEPA developed the AQI scale as a simple way to convey how clean or polluted air is. The AQI scale has six levels: 0-50 good; 51-100 Moderate; 101-150 Unhealthy for sensitive groups; 151-200 Unhealthy; 201-300 Very unhealthy; 301-500 Hazardous.
 The report is based on data collected from 2016-2018. The ten Montana counties are Fergus, Flathead, Gallatin, Lewis and Clark, Lincoln, Missoula, Powder River, Ravalli, Rosebud, and Silver Bow.
 Ecological health may also be impacted, but here we focus on human health.
 Although commonly referred to as blue-green algae, cyanobacteria are a group of photosynthetic bacteria.
 Conversely, in some cases drought can increase the concentration of nutrients (Balla et al. 2011; Gooding et al. 2008).
 A mosquito pool is described by the West Umatilla Mosquito Control District as a collection of mosquitoes (usually about 50) of any given species or group (e.g., Culex spp. mosquitoes) that are likely to carry and potentially transmit a virus (WUMCD undated).
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[AAS] American Association of Suicidology. 2020b. USA suicide: 2018 official final data [report]. Available online https://suicidology.org/wp-content/uploads/2020/02/2018datapgsv2_Final.pdf. Accessed 24 Apr 2020.
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