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... home (eg. Do they use high energy star appliances, do they use energy from green sources)   Resist the temptation to stray from designated walking tracks or boardwalks. These walking tracks and boardwalks ...
... toilets with dual flush systems. Large water savings can be made with this simple conversion. Install high star rating urinals, waterless urinals or sensor flush control urinals. Install low flow aerating ...
... through a sunspace, solarium or solar closet. These areas may also be employed usefully as a greenhouse or drying cabinet. An equator-side sun room may have its exterior windows higher than the windows ...
... from the equator: The sun will reach its highest point toward the South (in the direction of the equator) As winter solstice approaches, the angle at which the sun rises and sets progressively moves further ...
... you are concerned about this, avoid using laundry powders; these often contain high levels of salt as a bulking agent, and this has the same effect on your soil as a drought. Indoor reuse Recycled greywater ...
... may be applied directly from the sink to the garden or container field, as it receives high level treatment from soil and plant roots. Given that greywater may contain nutrients (e.g. from food, fertiliser, ...
... or potable water), nor heavily polluted (blackwater). According to this definition wastewater fcontaining significant food residues or high concentrations of toxic chemicals from household cleaners etc. ...
... the efficiency of the building envelope, (the barrier between conditioned and unconditioned space), they may use high-efficiency windows and insulation in walls, ceilings, and floors. Another strategy, ...
... compost-toilet systems have begun to compete with and replace conventional water closets in high-use public facilities. There they have found a market because of their resilience and the environmental ...
... framework based on the material and energy flows of economic production and consumption. His magnum opus, The Entropy Law and the Economic Process (1971), has been highly influential. Hotelling's rule ...
... Some solar balloons are large enough for human flight, but usage is generally limited to the toy market as the surface-area to payload-weight ratio is relatively high. Solar sails are a proposed form of ...
... at high temperatures (2300-2600 °C), but this process has been limited by complexity and low solar-to-hydrogen efficiency (1–2%). Another approach uses the heat from solar concentrators to drive the steam ...
... was constructed in 1958 on the shores of the Dead Sea near Jerusalem. The pond consisted of layers of water that successively increased from a weak salt solution at the top to a high salt solution at the ...
... along two axes. Parabolic dish systems give the highest efficiency among CSP technologies. The 50 kW Big Dish in Canberra, Australia is an example of this technology. A solar power tower uses an array ...
... for them. Photovoltaics went on to play an essential part in the success of early commercial satellites such as Telstar, and they remain vital to the telecommunications infrastructure today.  The high ...
... rows and the mixing of plant varieties can improve crop yields. While sunlight is generally considered a plentiful resource, the exceptions highlight the importance of solar energy to agriculture. During ...
... higher temperatures than that of the surrounding environment. The higher temperatures are a result of increased absorption of the Solar light by urban materials such as asphalt and concrete, which have ...
... concentrate sunlight for cooking, drying and pasteurization. More sophisticated technologies concentrate sunlight for high-temperature material testing, metal smelting and industrial chemical production. ...
... absorbs, with high emissivity, or perfectly reflects, ultraviolet and infrared while being transparent in visible light. It is worth noting that it is impossible for any material to be a good absorber ...
... have achieved a fuel efficiency as high as 84 mpg–U.S. (2.8 L/100 km / 100.9 mpg–imp), four times the current conventional automotive average. Also alternative propulsion vehicles that do not use or use ...
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Taxonomy by Zaragoza Online