Hiking equipment
According to Tom Brown, the basic plan for survival is in the order of shelter (including clothing), water, fire, and food. Cody Lundin writes about the "Rule of 3s"; this relates to human survival without basics: three minutes without air, three hours without shelter, three days without water, or three weeks without food.
Jill Farrant
Farrant is investigating the ability of certain species of plants which are able to survive without water for long periods of time. As Farrant explains, "[a]ll plants have the genes that enable desiccation tolerance, but most use them only when they make seeds. Resurrection plants can also switch these genes on in their leaves and roots whenever drought occurs." The ultimate goal of her research is to find applications that will lead to the development of drought-tolerant crops to nourish populations in arid, drought-prone climates, notably in Africa, and her research may have medicinal applications as well. Farrant believes food crops which can survive long stretches without water "will become more important as climate change (increasing drought) continues to impact on agriculture."