BEGIN:VCALENDAR
PRODID:-//Oregon State University//NONSGML Web Calendar//EN
VERSION:2.0
BEGIN:VTIMEZONE
TZID:US/Pacific
BEGIN:STANDARD
DTSTART:19671029T020000
TZOFFSETTO:-0800
TZOFFSETFROM:-0700
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10;UNTIL=20061029
TZNAME:PST
END:STANDARD
BEGIN:STANDARD
DTSTART:20071104T020000
TZOFFSETTO:-0800
TZOFFSETFROM:-0700
RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11
TZNAME:PST
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:19870405T020000
TZOFFSETTO:-0700
TZOFFSETFROM:-0800
RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4;UNTIL=20060402
TZNAME:PDT
END:DAYLIGHT
BEGIN:DAYLIGHT
DTSTART:20070311T020000
TZOFFSETTO:-0700
TZOFFSETFROM:-0800
RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3
TZNAME:PDT
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:20080425T223000Z-19386@calendar.oregonstate.edu
CLASS:PUBLIC
SUMMARY:Estimating the Impact of Climate Change on Crop Yields: The Importa
 nce of Nonlinear Temperature Effects
DESCRIPTION:The United States produces 41% of the world's corn and 38% of t
 he world's soybeans\, so any impact on US crop yields will have implication
 s for world food supply. We pair a panel of county-level crop\nyields in th
 e US with a fine-scale weather data set that incorporates the whole distrib
 ution of temperatures between the minimum and maximum within each day and a
 cross all days in the growing season.\nYields increase in temperature until
  about 29C for corn\, 30C for soybeans\, and 32C for cotton\, but temperatu
 res above these thresholds become very harmful. The slope of the decline ab
 ove the optimum\nis significantly steeper than the incline below it. The sa
 me nonlinear and asymmetric relationship is found whether we consider time 
 series or cross-sectional variation in weather and yields. This\nsuggests l
 imited potential for adaptation within crop species because the latter incl
 udes farmers' adaptations to warmer climates and the former does not. Area-
 weighted average yields given current\ngrowing regions are predicted to dec
 rease by 31-43% under the slowest warming scenario and 67-79% under the mos
 t rapid warming scenario by the end of the century.
DTSTART:20080425T223000Z
DTEND:20080426T000000Z
X-OSU-ADDRESS:2591 SW Campus Way
X-OSU-CITY:Corvallis
X-OSU-CONTACT-DEPT:Agric and Resource Econ
X-OSU-CONTACT-EMAIL:tania.porter@oregonstate.edu
X-OSU-CONTACT-PHONE:1 541 737 1396
X-OSU-COST:Free
X-OSU-LOCATION:Ballard Extension Hall
X-OSU-ROOM:200C
X-OSU-STATE:OR
X-OSU-SUBTITLE:AREc Seminar presented by Wolfram Schlenker of Columbia Univ
 ersity
LAST-MODIFIED:20080424T182640Z
CREATED:20080424T182640Z
DTSTAMP:20080424T182640Z
CONTACT:Tania Porter
END:VEVENT
END:VCALENDAR