Climate Trends Primer


For communities that need climate projections for an entire area rather than a single point location, and seek maps in addition to tables and graphs, this option provides a full report covering temperature and precipitation variables that meets the requirements for a Climate Trends Primer as outlined in the Climate Ready Communities Practical Guide for Building Climate Resilience. At a more detailed level the Climate Trends Primer includes:

  • Historical climate data and future projections will be analyzed for the community-selected geographic area such as county, group of counties, watershed or city
  • A set of temperature and precipitation variables analyzed across the past/historical, mid-21st century, and late 21st century time periods.
    • Following default 15 variable are presented in a table format:
      • Mean annual, summer and winter temperature, mean annual, summer, and winter precipitation, annual precipitation as snow (if applicable), annual climatic moisture deficit (drought stress), mean warmest month temperature, mean coldest month temperature, extreme maximum temperature, number of frost free days, length of frost free period, beginning of frost free period, end of frost free period.
      • Selection of alternate variables is available on request, subject to data availability.
      • Addition of extreme events thresholds (such as # days/year above 110° F, # nights/year that remain above 85° F, or number of days/year with more than 4 inches of rainfall).
    • 8 maps and graphs for the area chosen by the community, each map is shown in 3 versions for contrast (past/historical, mid-21st century, and late 21st century):
      • Mean annual, summer, and winter temperature (3)
      • Mean annual, summer, and winter precipitation (3)
      • Mean annual precipitation as snow (1)
      • Mean annual climatic moisture deficit (1)
    • Data is sourced from ClimateNA
  • Projections for both a higher emissions pathway (RCP 8.5) and a lower emissions pathway (RCP 4.5) for assessment of the level of impact that can be avoided with aggressive reductions in greenhouse gas emissions.
  • Deliverables:
    • Written report for the selected geographic region that includes tables, graphs and maps, information on sources, and a full explanation of model uncertainty, what the models are telling us, and climate change at the national and global scale.
  • Options
    • Animated presentation for unlimited playback by the community ($650) 
    • Remote live presentation that is recorded and allows unlimited playback by the community ($750) 
    • Synthesis of scientific research on the impacts of climate projections on ecological and socioeconomic systems of interest to the community ($3200) 
Initiative of
Geos Institute


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