Straw Bale Construction

A construction method that uses waste straw left over from crops, such as wheat, oats, barley, rye, rice and flax, after all the food has been extracted. Straw is gathered, baled, compressed and tied together. Bales are placed over a “stem wall” to protect...
Sulfur Hexafluoride

Sulfur Hexafluoride

According to the Intergovernmental Panel on Climate Change, SF6 is the most potent greenhouse gas that it has evaluated, with a global warming potential of 22,800 times that of CO2when compared over a 100-year period. Sulfur hexafluoride is also extremely long-lived,...

Hydrological drought

Hydrological droughts are typically described by a reduction in lake storage, a decrease of stream flow discharge, and a lowering of groundwater levels over large areas, over one year or several consecutive years.
Drought

Drought

A drought is a more general phenomenon than low flow and can be characterized by more than low stream flows. Droughts can be classified as meteorological, atmospheric, agricultural, hydrological, and water management. Typically, a drought is defined in terms of water...
Low Flow (Environmental)

Low Flow (Environmental)

Low flow is the “flow of water in a stream during prolonged dry weather,” according to the World Meteorological Organization. Many states use design flow statistics such as the 7Q10 (the lowest 7-day average flow that occurs on average once every 10 years)...
Low Flow Fixtures

Low Flow Fixtures

Plumbing fixtures that significantly reduce the amount of water released per use are labeled “low-flow” or “low-flush.” These fixtures use just enough water to be effective, saving excess, clean, drinking water that usually goes down the drain. Toilets are one of the...