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SUMMARY:EESS talk on "An earth-scientist’s view of human population dyna
 mics"
DTSTART:20200407T121500
DTEND:20200407T130000
DTSTAMP:20260428T073101Z
UID:d4868bdf3f3f66e02a995f8fc345cb641e9ba466591ecb88c788cede
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Stephen Warren\, Professor\, Dpt of Atmospheric Sciences\, 
 and Department of Earth & Space Sciences\, University of Washington\, Seat
 tle\, USA\nAbstract:\nDuring the 20th century\, the world’s population g
 rew by the factor 3.5.  What permitted this growth was the agricultural a
 dvances of the 20th century\; without those advances the population would 
 not have grown as it did\, from 1.7 billion in 1900 to 6 billion in 2000.
   Now in the 21st century\, the ability to secure adequate food and water
  worldwide is threatened by continued rapid population growth\, which has 
 been steady at ~80 million per year for each of the last 50 years.\nToday
 ’s fertility rates and population sizes are examined in the context of p
 ast and future centuries\, considering these questions:\nWhy is a climate 
 scientist studying demography?\nHow will agricultural developments affect 
 population sizes?\nHow was fertility limited in pre-agricultural societies
 ?\nWhat are the consequences of regional diversity in fertility rates?\nWh
 y can the global average fertility rate rise even if each country’s fert
 ility rate is falling?\nWhy has political and academic interest in problem
 s of overpopulation fluctuated so wildly (high in the 1920s and 1960s\; lo
 w following the 1994 Cairo conference)?\nCan there be economic benefits to
  reducing fertility?\nWas it inevitable that the world population would ev
 entually at some time reach today’s 7.7 billion\, or could policies have
  been instituted a century ago to limit it to 2 or 3 billion?\nWhat will s
 top world population growth?\n\nShort biography:\nStephen Warren is Emerit
 us Professor at the University of Washington in Seattle. He teaches course
 s on climate\, atmospheric radiation\, glaciology\, and scientific writing
 \, and has won two awards for excellence in teaching. His research concern
 s the interaction of solar radiation with snow\, clouds\, and sea ice\, an
 d their role in climate\, including fieldwork in the Arctic and Antarctic.
  He has about 135 publications\, which have been cited about 16\,000 times
 . He is a Fellow of AMS\, AGU\, and AAAS. His interest in population probl
 ems developed from teaching a course on climate change\; he has published 
 two journal articles and one book chapter about human population dynamics.
 \n 
LOCATION:GR A3 30 https://plan.epfl.ch/?room==GR%20A3%2030
STATUS:CANCELLED
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