An increase in consumption of resources may result in a scarcity of critical resources, including food, land, water, and fuel. This increase in resource use may also be accompanied by degradation of resources. Review the graph below:

Line graphs showing the world ecological footprint by land type of carbon, fishing grounds, cropland, built up land, forest products, and grazing land measured in global hectares from 1961 to 2016. The graphs sections are layered on top of each other to show the cumulative amount. In 1961, the total was 7.05 billion global hectares, which increased to 20.5 billion global hectares in 2016. From 1961 to 2016, the increase in global hectares were 81 million to 473 million for built up land, 3.09 billion to 12.3 billion for carbon, 1.44 million to 3.98 million for cropland, 294 million to 670 million for fishing grounds, 1.32 billion to 2.04 billion for forest products, and 816 million to 1.05 billion in grazing lands.
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A.
i. Explain the variables that make up the ecological footprint of an individual or country.
ii. Identify the component that is the largest contributor to the world's ecological footprint. Explain reasons for its current graphical trend.

B. The goal of sustainability is to stop and possibly undo some of the damage done to Earth's systems by using restorative processes and following a sustainable yield model when harvesting resources.
i. Describe an example of resource harvesting that uses a sustainable yield model.
ii. Propose one restorative process that reduces human impact on forest resources. Justify your proposed solution.