The Ecological Footprint of an activity tries to measure its consumption of natural resources and the amount of biologically productive land and sea needed to regenerate those resources and to absorb and render harmless the waste that is produced.
A Carbon Footprint, also called Carbon Profile, is an LCA with the analysis limited to emissions that have an effect on climate change (carbon dioxide, methane, etc.). This limitation makes it easier to apply the calculation to integrated systems, such as an entire house or automobile.
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Sustainability, in a broad sense, is the ability to maintain a certain process or state. It is now most frequently used in connection with biological and human systems. In an ecological context, sustainability can be defined as the ability of an ecosystem to maintain ecological processes, functions, biodiversity and productivity into the future.