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I will try to make this interesting by choosing 2 production and consumption habits that are interrelated. One consumption habit that humankind has been using for centuries is the harvesting of trees for wood. Humans discovered early on that wood is extremely useful for building shelter (houses) and furniture. It can be readily cut into any useful shape and will retain its strength over time. It is also very plentiful and found throughout most of the world. However, there eventually came a time where excessive logging and cutting down entire forests started to threaten the tree supply. We had to change our production habits and started developing reseeding programs to repopulate forests to allow for long term sustainable logging into the future.
Another production habit that people have developed more recently is the harvesting of rare earth elements from under the earth's crust. Rare earth elements include terbium, yttrium, and europium and are used in small quantites in many modern electronic devices including smartphones, HDTV's, and medical imaging devices. Rare earth elements are not as scarce as gold or platinum but they are only mined on commercial scale at select sites across the globe. Eventually supply of these materials is going to become important and we are going to have to change our consumption habits with these devices. As of now, old electronics are simply thrown away in the garbage but we are going to need to learn how to effectively recycle these elements for reuse in new devices, thus extending the lifetime of the planet's supply of these materials.
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