land-based biomass
81Food web — A freshwater aquatic and terrestrial food web. A food web (or food cycle) depicts feeding connections (what eats what) in an ecological community. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the …
82Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
83Permaculture — The word permaculture, coined by Australians Bill Mollison and David Holmgren during the 1970s, is a portmanteau of permanent agriculture as well as permanent culture. Through a series of publications, Mollison, Holmgren and their associates… …
84Biofuel in the United States — In today’s climate of rising automobile fuel prices and oil peak some people have began to implement this form of alternative energy in the United States once again.Biofuels are not just limited to liquid fuels. One of the often overlooked uses… …
85geography — /jee og reuh fee/, n., pl. geographies. 1. the science dealing with the areal differentiation of the earth s surface, as shown in the character, arrangement, and interrelations over the world of such elements as climate, elevation, soil,… …
86Fossil-fuel phase-out — A fossil fuel phase out are plans for transport electrification, decommissioning of operating fossil fuel fired power plants and prevention of the construction of new fossil fuel fired power stations. The purpose of this is to decrease the high… …
87Solar thermal energy — Solar thermal system for water heating in Santorini, Greece …
88Amazon rainforest — Amazonia redirects here. For other uses, see Amazonia (disambiguation). Amazon Rainforest Forest …
89Xcel Energy — Inc. Type Public (NYSE: XEL) Industry Electricity and Natural Gas Utility …
90Flexible-fuel vehicle — For other types of vehicles, see Alternative fuel vehicle and Hybrid vehicle. The Ford Model T was the first commercial flex fuel vehicle. The engine was capable of running on gasoline or ethanol, or a mix of both. A flexible fuel vehicle (FFV)… …
