Albedo reflectance and bi-hemispherical reflectance (e.g.,). These calculations are based on the bidirectional reflectance distribution function (BRDF), which describes how the reflectance of a given surface depends on the view angle of the observer and the solar angle. BDRF can facilitate translations of observations of reflectance into albedo. Earth's average surface temperature due to its albedo and the greenhouse effect is currently about 15 °C. If Earth were frozen entirely (and hence be more reflective), the average temperature of the planet would drop below −40 °C. If only the continental land masses became covered by glaciers, the mean temperature of the
Albedo One emotion... I don't think we've ever published a story nobody disliked and I doubt (hope) we ever will." The overall approach to selection of fiction for publication in "Albedo One" has been commended by one reviewer by stating that "while other publishers strain to adhere to self-imposed deadlines, Albedo One embraces a publishing schedule dictated by its gradual accumulation of quality material - material that mixes first time writers with established professionals, and that demands an audience." "For the main article see Aeon Award" Since 2004 "Albedo One" has sponsored the Aeon Award, a fiction contest aimed at promoting new