In this chapter, we describe Florida's agriculture, the vulnerability of its crops and livestock to climate change and possible adaptation strategies. Much of Florida's agricultural success is linked to its moderate climate, which allows vegetable and fruit crop production during the winter/spring season as
Key Messages• Florida's agricultural industries provide over $120 billion in economic revenue to the state, second only to tourism, and support more than two million jobs.• Florida's diverse climate conditions make it suitable for many crops, fruits, livestock, and seafood, although these are vulnerable to climate variations that occur from year to year.• Florida's agriculture has a long history of successful adaptations to the vagaries of weather and climate, but climate change poses a challenge that is unprecedented in magnitude and rates of change.• Although current temperatures are near optimal for growing many of our crops, yields are lower during the hotter seasons that occur now, and additional increases in future temperatures will lead to lower crop yields, creating challenges to the competitiveness of current production systems.• Florida's agriculture faces additional challenges from climate change characterized by sea level rise and intensified extreme climate events, affecting land and irrigation water 236 • YOUNG GU HER ET AL.availability, crop yield and quality, livestock productivity, as well as pest and disease pressures.• The known increases in atmospheric CO 2 concentration can stimulate growth in some crops but will reduce the nutritional value of many food crops. Higher atmospheric CO 2 concentration will also increase canopy temperatures and could add to the adverse effects of temperature.• New technologies and adaptation strategies needed for sustainable agricultural production in Florida include increased water and nutrient use efficiency in crops, crop and livestock breeding for heat stress, pest and disease resistance, and reduced exposure of livestock to high temperatures.• Knowledge gaps include an understanding of climate change impacts on growth and nutritional value of vegetable and fruit crops, the dynamics of pests and diseases, and direct and indirect effects (the latter via pasture growth) on livestock and livestock-crop systems.• New experiments and development of modeling and analysis tools are needed for many of the economically-important agricultural systems in order to better estimate climate change impacts on Florida's diverse agricultural production systems.