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SUMMARY:Resource Efficiency: delivering future energy and material service
 s with less environmental impact.  - Prof Jonathan Cullen\, CUED
DTSTART:20231110T140000Z
DTEND:20231110T150000Z
UID:TALK205450@talks.cam.ac.uk
CONTACT:Hilde Hambro
DESCRIPTION:Resource is the stuff we extract from nature\, refine and reac
 t\, push and prod\, and then package and deliver\, to satisfy the demands 
 of our modern society. Resources include: fossil fuels\, which are extract
 ed from the ground\, burnt\, and transformed into heat and light in buildi
 ngs\, or motion in vehicles\; mineral ores\, which are dug up\, reacted\, 
 refined and shaped into a multitude of products\; water\, taken from river
 s\, lakes and underground reservoirs\, purified and transported\, to quenc
 h our thirst\, water plants and wash away the dirt\; nutrients\, which whe
 n combined with sunlight and water\, produce food to eat\; and so on.\n\nT
 he problem is that our demand for material and energy services is causing 
 strain on planet Earth. This can be in the form of resource shortages\, bu
 t more commonly as damaging by-products\, with the release greenhouse gas 
 emissions from combustion of fossil fuels presenting a serious threat to t
 he long-term stability of the climate.\n\nResource efficiency measures how
  good we are at transforming resources into useful goods and services. The
  metric is simples in concept: comparing the useful output to total input.
  But there is much debate about what measure of useful output to use for t
 he numerator\, and what measure of resource input to use for the denominat
 or. \n\nA more resource efficient society will deliver the desired energy 
 and material services\, using fewer resource inputs. And if the absolute d
 emand for energy and material services can be held constant\, or reduced\,
  then resource efficiency leads to less stress on the planet.
LOCATION:Department of Engineering - LR5
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