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Here are the conversion factors for those various expressions of wind speed: 1 m/s = 2.237 statute mile/h = 1.944 knots 1 knot = 1.151 statute mile/h = 0.514 m/s 1 statute mile/h = 0.869 knots = 0.447 m/s. Note: 1 statute mile = 5,280 feet = 1,609 meters
The Environmental Performance Index (EPI) is a method of quantifying and numerically marking the environmental performance of a state's policies, highlightning the degradation of the planet's life-supporting systems on which humanity depends. A world economy that continues to rely heavily on fossil fuels translates into ongoing air and water ...
The 2024 UNEP Food Waste Index Report, "Think Eat Save: Tracking Progress to Halve Global Food Waste," addresses the severe issue of food waste that accounts for US$1 trillion in losses, 8–10% of global greenhouse emissions, and the unnecessary use of 30% of the world's agricultural land, exacerbating hunger and affecting child growth.
Population equivalent (PE) or unit per capita loading, or equivalent person (EP), is a parameter for characterizing industrial wastewaters.It essentially compares the polluting potential of an industry (in terms of biodegradable organic matter) with a population (or certain number of people), which would produce the same polluting load.
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Calculating waste diversion rates is an important tool for households and especially businesses to use. It is a KPI in indicating a successful recycling program. [14] By tracking progress weekly, changes can be made to improve week to week. A simple formula is used to calculate the waste diversion rate, as follows:
A fire danger index of between 12 and 25 on the index is generally considered a "high" degree of danger, while a day having a danger index of over 50 is considered a "severe" fire danger rating. Above this level in 2010 a distinction was made between forest and grassland fuels.
Meteorite: As may be concluded from the air pressure, the atmosphere's material is equivalent to about 10 m of water. Since ice has about the same density as water, an ice cube from space travelling at 15 km/s or so must have a length of 10 m to reach the surface of the earth at high speed. A smaller ice cube will be slowed to terminal velocity ...