ENERGY 303 Lecture Notes - Lecture 27: Videotelephony, Electric Motor, Carno
Document Summary
Telephone or video conferencing, or selling, rather than air transport. Internet websites saving journal, book, and document production from trees, and trips to the library. Planes are actually quite efficient ways of going quickly. But we also go quite fast in them, and total a lot of transportation miles that way, so use a lot of fuel. New report finds climate change caused by 7 billion key individuals: every person is responsible for climate change because of their energy consumption. Overall diagram: is there an energy problem , all sources of energy have costs financial and environmental, we want to grow our economy and grow energy use; that requires finding additional sources, these are clearly energy challenges. Our energy future: there are only a few things we can do in the future, use less energy either via less consumption or higher efficiency, find more sources of energy.
