Rapid growth and occupation through early reproduction, short life spans, low biomass, and lots of offspring. See K-Selection.
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The R value or R-value is a measure of thermal resistance used in the building and construction industry. The bigger the number, the better the building insulation's effectiveness. R value is the reciprocal of U-value. Often used as a measure of bulk insulation products, such as a roof insulation Batts.
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A device designed to reduce or stop the flow of radiant energy.
Search the Web for Radiant BarrierClimate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.
In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.
Wikipedia - Climate Change entry
Search the Web for Radiant Floor HeatingAn increase in temperature with height due to radiational cooling of the earth's surface. Also called a nocturnal inversion.
Search the Web for Radiation InversionA change in the balance between incoming solar radiation and outgoing infrared radiation. Without any radiative forcing, solar radiation coming to the Earth would continue to be approximately equal to the infrared radiation emitted from the Earth. The addition of greenhouse gases traps an increased fraction of the infrared radiation, radiating it back toward the surface and creating a warming influence.
Search the Web for Radiative ForcingAn area of diminished precipitation on the lee (downwind) side of a mountain or mountain range.
Search the Web for RainshadowClimate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.
In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.
Wikipedia - Climate Change entry
Search the Web for Rapidly RenewableReused heat or energy that otherwise would be lost. For example, a combined cycle power plant recaptures some of its own waste heat and reuses it to make extra electric power.
Search the Web for Recovered EnergyFragments of products or finished products of a manufacturing process, which has converted a resource into a commodity of real economic value, and includes pre-consumer and post-consumer material but does not include excess resources of the manufacturing process.
Search the Web for Recovered MaterialClimate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.
In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.
Wikipedia - Climate Change entry
Search the Web for RecyclingThe redox (reduction–oxidation) cell is a reversible cell in which electrochemical components are dissolved in the electrolyte. Redox flow batteries are rechargeable.
A product that has been completely disassembled and restored to its original working order while maximizing the reuse of its original materials.
Search the Web for Refurbished ProductAbility of an ecosystem to maintain relative ecological integrity indefinitely.
Search the Web for Relative Ecological SustainabilityRelative humidity is a term used to describe the amount of water vapor in a mixture of air and water vapor. It is defined as the partial pressure
of water vapor in the air-water mixture, given as a percentage of the
saturated vapor pressure, under those conditions
The relative humidity
of air thus changes not only with respect to the absolute humidity
(moisture content) but also temperature and pressure, upon which the
saturated vapor pressure depends. Relative humidity is often used
instead of absolute humidity in situations where the rate of water
evaporation is important, as it takes into account the variation in
saturated vapor pressure.
Any product diverted from the supply of discarded materials by refurbishing and marketing said product without substantial change to its original form.
Search the Web for Remanufactured ProductClimate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.
In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.
Wikipedia - Climate Change entry
Search the Web for Renewable EnergyFish species that complete their entire life cycle in freshwater. Non-anadromous fish. An example is rainbow trout.
Search the Web for Resident FishThe cost of an economic activity foregone by the choice of another activity.
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A practice in which the primary consideration of material use begins with the concept of "Reduce - Reuse - Recycle - Repair" stated in descending order of priority.
This concept may be applied in everyday life to help promote a sustainable society. In design, begin by reducing the amount of material that is specified; find ways to reuse materials, recycle products or product waste; specify products made from recycled materials; and repair or restore products instead of replacing them.
The heating of oil shale to get the oil out from it.
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A form of outdoor advertising with a clean is green message.Essentially it is created by power washing a message into a dirty surface such as a side-walk or an outdoor concrete wall. A specific form of green graffiti.
How legal such graffiti is depends on the laws in force for the area concerned. Some local governments require any form of advertising to require prior permission before placement. Also careful consideration needs to be given to the effect of power cleaning on the actual material being cleaned, it could well promote breaking down the exposed surface quicker than would have otherwise being the case.
Climate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.
In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.
Wikipedia - Climate Change entry
Search the Web for RewildingAn area of land directly influenced by water. An ecosystem that is transitional between land and water ecosystems. Riparian areas usually have visible vegetative or physical characteristics reflecting the influence of water. River sides, lake borders, and marshes are typical riparian areas.
Search the Web for Riparian AreaRiparian areas that are managed to protect the aquatic and riparian ecosystem. A riparian buffer protects water quality and temperature, habitat along the banks, upland habitat for aquatic and riparian species, and some or all of the floodplain.
Search the Web for Riparian BufferThe rights of water use possessed by a person owning land containing or bordering a water course or lake.
Search the Web for Riparian RightsA rotating, cigar-shaped cloud that sometimes precedes a thunderstorm. Often seen in UFO photographs.
Search the Web for Roll CloudFish not prized for sport or eating, such as gar and suckers. Most are more tolerant of changing environmental conditions than are game or food species.
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