Definitions - i

Ice Core

A cylindrical section of ice removed from a glacier or an ice sheet in order to study climate patterns of the past.

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Ice Shelf

A thick mass of ice extending from a polar shore. The seaward edge is afloat and sometimes extends hundreds of miles into the sea.

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Immunotoxicity

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Impervious

Refers to a surface that promotes storm water runoff instead of infiltration into the ground.

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Incident Light

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Incineration

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Indian Summer

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Indoor Air Quality

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Induction Generator

A variable speed multi-pole electric generator.

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Infiltration

Leakage of ground water into a sewage collection system.

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Infra-red Radiation

The heat energy that is emitted from all solids, liquids, and gases. In the context of the greenhouse issue, the term refers to the heat energy emitted by the Earth's surface and its atmosphere. Greenhouse gases strongly absorb this radiation in the Earth's atmosphere, and re-radiate some back towards the surface, creating the greenhouse effect.

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Ingeo

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Inoculum

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Insecticide

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Insolation

The solar power density incident on a surface of stated area and orientation, usually expressed as Watts per square meter or Btu per square foot per hour. See diffuse insolation and direct insolation.

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Insulating Walls

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Intelligent Materials

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Intercropping

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Invasive

An introduced (non-native) plant that disrupts the local ecosystem and isn't checked by climate, grazing, or other natural means.

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Inversion

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Inverter

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IPCC

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Irradiance

The direct, diffuse, and reflected solar radiation that strikes a surface. Usually expressed in kilowatts per square meter. Irradiance multiplied by time equals insolation.

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Irradiated Food

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Isotherms

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Click on a letter to see all the terms and definitions that begin with that letter.

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