; and (E) agriculture. (2) Preparation for and adaptation to climate change Efforts focused on activities involved in preparing for, adapting to, and addressing risks related to climate change, including the following: (A) Social systems (i) Care infrastructure To ensure adequate, reliable access to and availability of formal services and informal, community-based support for healthcare, childcare, elder care, home care, domestic care, and other related care functions as climate change impacts increase and to protect vulnerable populations in times of disaster. (ii) Human health To prevent and address increased injury, illness, and death due to increased exposure to heat waves, floods, droughts, extreme weather events and vector-, food-, and waterborne infectious diseases and to changes in the quality and safety of air, food and water, and stresses to mental health. (iii) Communities (I) Urban communities Strengthen vulnerable infrastructure and prevent and address concentrated heat and air pollution. (II) Rural communities Strengthen infrastructure and increase resources for resilience. (III) Tribal and indigenous communities Preparing for and adapting to threats to livelihoods and economies in agriculture, hunting and gathering, fishing, forestry, energy, recreation and tourism, threats to sites, practices and relationships with cultural, spiritual and ceremonial importance, loss of cultural heritage and identity, and loss of sovereignty and self-determination. (B) Environmental systems (i) Water Changes in water quantity and quality, deteriorating water infrastructure, flood and drought management, extreme precipitation and rising sea levels, ensuring access to clean drinking water, and ensuring adequate water storage and availability. (ii) Air Worsening air quality, respiratory and cardiovascular illness and death, injury due to reduced visibility, damage to agricultural crops and forests, increased wildfire smoke, increased frequency and severity of allergic illnesses, and minimizing air pollutants to