When the morning TV and Internet news flashes tales of nationwide climate strain, Tahoe feels oddly calm this summer with its crisp and clean mountain air. Watching for 90-degree spikes, I sigh, confident I am ready for whatever weather arrives.Think clean food, such as whole fruits, nuts, and whole grains that withstand unpowered conditions, and require zero refrigeration. Prickly Pears: Whole pears withstand warm temperatures without spoiling or getting mushy, and provide dietary fiber and moisture. Lovely Lemons: Like apples, lemons share a thick protective skin. Whole lemons remain stable without refrigeration and can be squeezed into water to enhance hydration, electrolyte absorption, and flavor.