Earth's Resources

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Natural resource

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Part of the environment that supplies material useful or necessary for the survival of living things. Examples: air, water, fossil fuels, sunlight.

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Energy poverty

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The lack of access to modern energy services such as electricity.

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Renewable resource

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A resource that can be replenished by natural processes at least as quickly as it is used. Example: wind, solar, wood.

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Nutrient

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A part of food used by the body to grow and survive.

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Malnutrition

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A lack of proper nutrition that negatively affects growth and health.

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Sustainability

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Meeting human needs in ways that ensure future generations will also be able to meet their needs.

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Air pollution

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The contamination of air by harmful substances including gases and smoke.

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Water pollution

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Any contamination of water with chemicals or other hazardous substances that are detrimental to human, animal, or plant health.

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Deforestation

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The large-scale removal of trees from forests, often resulting in damage to the quality of the land.

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Carbon footprint

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The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).