1. An environmental monitoring system comprising: a network; a plurality of appliances, each of the plurality of appliances including: a network interface; at least one environmental sensor; a data storage medium; and a processor coupled to the network interface, the at least one environmental sensor; and the data storage medium and configured to: receive environmental data from the at least one environmental sensor; store the environmental data on the data storage medium; and provide the environmental data via the network; and a server including: a network interface; and a processor coupled to the network interface, the processor configured to: receive environmental data from each of the plurality of appliances; cause display of a graphical element including at least one of a vector plot and a contour plot; and cause display of a plurality of icons superimposed on the graphical element, the plurality of icons associated with the plurality of appliances, the plurality of appliances associated with a category, the plurality of icons arranged on the display in accordance with a characteristic associated with the plurality of appliances.