Climate Nuggets

Resource Materials specific to Florida

 

1.  SCIENTIFICALLY-VALIDATED, FLORIDA-SPECIFIC CONCERNS 

 

These CONCERNS are derived from materials prepared by the  Florida Climate Center  (FCC) at Florida State University (FSU).  FCC  serves as the primary resource in the state of Florida for climate data, information, and services.  The Center was established to be the first stop for climate data and information for citizens, organizations, educational institutions and private businesses in the state of Florida.

 

The FCC’s discussion of the timing and possible impacts of Climate Change in Florida, the basis for our CONCERNS  below, can be accessed at their discussion of  Climate Change, where the FCC provides its own fine-tuned look at specific Florida situations.  This material builds directly on the congressionally mandated, heavily peer-reviewed US Government report on climate change impacts, risks, and responses - the Fifth National Climate Assessment released in 2023.  Particular sections of interest to Florida are:  Fifth National Climate Assessment 2. Climate Trends   and Fifth National Climate Assessment 22 . Southeast . 

 

CONCERN 1: TEMPERATURE TRENDS  The Florida Climate Center (FCC) documents large land and ocean temperature increases, already experienced from global warming, and they expect further increases in the immediate decades.   The FCC attributes these changes to human emissions of greenhouse gasses.  

 

• Florida has seen a remarkable warming trend over the past decade, and July and August of 2023 each set a new all-time monthly temperature record for Florida (at 84.1°F and 84.9°F, respectively). 

• Warming ocean temperatures are expected to lead to more marine heatwaves, which in Florida can further contribute to extreme heat waves felt on land.  Marine heatwaves can have devastating impacts to marine life like coral reefs.

 

• Since the beginning of the 20th century we have already experienced land temperature increases of 3.5 F across Florida, contrasted to the global average increase of 2.7 F. 

• Our night-time minimum temperatures (required to recover from the hotter days) are also increasing.  

• As the average temperature rises, the likelihood of experiencing more frequent and intense extreme heat will also increase.  The FCC projects that by 2050 Floridians may endure an average of 30 more days per year above 95 F - this ranges from 10-20 more days on the coasts to 20-40 more in the panhandle, to more than 40 around the inland peninsula.  

CONCERN 2:  PRECIPITATION TRENDS   While Florida’s precipitation varies considerably from year to year and on a decadal basis, major global warming impacts are already being seen and more are expected.

• Extreme precipitation events are expected to become more frequent and intense in a warmer world. Recent heavy rainfall events, such as the extreme rainfall event in Fort Lauderdale on April 12, 2023 and recent hurricanes (Idalia, Ian, Nicole), are consistent with expected increases in precipitation, tropical cyclone intensity, and coastal storm surge flooding in a warmer world with higher evaporation rates and atmospheric moisture.

• Average annual precipitation is projected to increase in North Florida and decrease in South Florida, with higher confidence in changes for North Florida.

 

CONCERN 3:  CLIMATE CHANGE AND HURRICANES   Of particular importance to Florida and the Southeast is how climate change will influence tropical cyclone activity and associated hazards. 

• Coastal flooding from storm surge is expected to increase regardless of changes in storm intensity due to future sea level rise.

• It is projected that flooding rain associated with hurricanes will become more hazardous, particularly in light of the notable trend of slower-moving storms that has recently emerged.

• While the mean intensity of hurricanes has not changed significantly in the past, warmer oceans raise the ceiling for intensity.  A larger proportion of storms have reached major hurricane (Category 3-5) strength in recent years, along with an increase in rapid intensification events.

• The locations where hurricanes reach their peak intensity have shifted away from the equator poleward and toward the west, or closer to land in the Atlantic basin, with other regional changes in hurricane tracks observed. 

 

CONCERN 4:  SEA LEVEL RISE   Florida is among the most exposed states in the country to sea level rise and coastal storms. With its low-lying coastal topography and more than 8,400 miles of shoreline, much of Florida and its coastal population are vulnerable to the impacts of rising sea levels. While vulnerability to sea level rise varies considerably across the state, with many inland areas at much higher elevations, sea level rise impacts will not be restricted to areas along the immediate coast.

• Florida sea levels are now rising at rates up to more than 3 inches per decade and are increasing.  Projections of sea level rise for the Southeast U.S. average 16 - 23 inches by 2050.  By 2100, these estimates increase to 2.2 - 7.3 feet and up to 13 feet by 2150, relative to 2000. 

• Sea level rise will increase high tide flooding events and saltwater intrusion, which already impacts coastal forests and estuaries, contaminates drinking water supplies, exacerbates flooding impacts, and has led to more frequent harmful algal blooms in Florida.  Higher sea levels can also lead to higher storm surge levels and greater coastal flooding during tropical cyclones.

• Coastal communities across the state are already seeing the impacts from rising sea levels and are taking steps to address these impacts. In some places, sea level rise threatens to disrupt daily life, such as where increased street flooding with saltwater can impact people, infrastructure, and vehicles. As sea level rise continues and accelerates, greater adaptation actions will be needed to minimize impacts and prepare communities for increased flood risks.

 

CONCERN 5:  DEMOGRAPHIC AND LAND USE TRENDS   The impacts of a changing climate will also be driven by demographic and land use changes happening in the state and elsewhere. Florida has one of the fastest growing populations in the country and its population is expected to continue to rise. 

• Population growth, along with continued development, will expose more people, communities, and assets to extreme weather and climate, increasing the state’s overall risk to climate variability and extreme weather events. Increased exposure to extreme events like heat and flooding will result in short- and long-term impacts and lead to adverse public health outcomes, such as heat-related illness and mortality, especially among more vulnerable populations.

• While the climate of Florida and the Southeast is already changing and will continue to change over the coming decades, the extent of change and severity of impacts will depend in part on human actions. Communities are preparing by becoming more efficient, reducing greenhouse gas emissions, identifying vulnerable sectors of society, scaling up adaptation strategies to mitigate risks, and planning with an eye toward the future.

 

 

 

1.  Sample, Top-Level Questions from Constituents

 

1. Is climate change real?  How strong is the evidence?

2. What causes it?

3. Is it a serious and urgent threat?  What is your understanding of potential global impacts and the timing of those impacts, which form the basis of your policies for climate change?

4. What goals (with respect to causes, behaviors, and especially timing) are critical for human and planetary health and sustainability?

5. What policies are you committed to help achieve  (reduction of emissions,  transitions of behaviors and technologies, adaptation, resiliency, etc.)?

6. Is climate change of special concern for Florida?  Why?   What effects are we seeing? Which Floridians are most vulnerable?

o   Sea level rise, flooding and extreme precipitation

o   Increased hurricane threat (number and intensity)

o   Extreme heat and humidity

o   Spread of disease

o   Water quality

o   Tourism impacts

1. Can we afford to address climate change? 

2. What are the opportunities created by addressing climate change?  What are the adverse impacts, if any?

3. Are we as a country doing enough to address climate change? What should we be doing differently?

4. Economists overwhelmingly support putting a price on carbon as the fairest and most effective way to reduce carbon emissions. Are you familiar with carbon pricing policies? Would you support a carbon price to reduce carbon emissions?

5. How important is it to you to address climate change? Where does climate change fall in your priorities as a legislator?

6. Should Florida bear any responsibility globally to reduce greenhouse gasses it currently emits?  If yes, what form should that take?

7. Do you support the administration’s actions on climate change? What would you do differently, if anything?

C.  Resources used in Developing Questions

The following major peer-reviewed reports were used in developing questions for the candidates.  Sections in red are the most directly linked, to assist the reader.

 

Intergovernmental Panel on Climate Change (IPCC) [United Nations]

IPCC Sixth Assessment Report —Synthesis Report

Summary for Policymakers IPCC_AR6_SYR_SPM.pdf   

AR6 - SYR - Headline Statements 

 

 

 

U.S. Global Change Research Program  [U.S. Government]

National Climate Assessment 5 -NCA5-Full Report 

NCA5 - Key Messages 

NCA5 - Interactive Atlas  

(The above references are now not accessible because they were pulled by the current administration)

 

Fifth National Climate Assessment (Archived, but still available)
 

 

American Resiliency [non-profit dedicated to articulating the NCA findings]Florida 2050 Climate Forecast: 2023 Update

June '25 Earth Systems Update

October 25 Earth Systems Update: Ocean Phase Change