How does energy conservation apply to natural disasters?
I am not sure there is much of a relationship between these two topics, but a possible link is described below.
Energy conservation measures are usually done to reduce air pollutants or greenhouse gases OR to conserve energy resources when they are in short supply (e.g. in the 1970s there appeared to be an oil shortage, and so gasoline was conserved and rationed in North America).
When natural disasters occur there may well be a disruption of energy supplies (gas, coal, oil) and so governments may impose restrictions on energy use or ask for voluntary energy conservation measures. Things like energy for operating rooms in hospitals, for example, would be a priority use of energy.