powerpoint presentationozonedepletiontheory.info/papers/ward2015tedxslides.pdfobserved warnings of...
TRANSCRIPT
5.4o
5.4o 2.7
o
2.7o Robock, 2002
© Arctic-Images/Corbis
Explosive Cooling
Pinatubo, 1991 Bárðarbunga, 2014-2015
Effusive Warming
Lasting Hours Lasting > Months
© Arctic-Images/Corbis
Greenland Ice Sheet Program Drill Hole 2 (GISP2)
Vo
lca
nic
Su
lfate
Vo
lca
nic
Su
lfate
Oxygen
Oxygen Oxygen
Altitu
de
in M
iles
11
31
52
Ozone Layer
Polar Stratospheric Clouds
Chlorofluorocarbon Gases
Antarctic Peninsula
Antarctic Ozone Hole
September 24, 2006
NASA
© Arctic-
Images/Corbis© Arctic-Images/Corbis
Explosive Cooling © Arctic-Images/Corbis
Pinatubo, 1991 Bárðarbunga, 2014-2015
Effusive Warming
Lasting Hours Lasting > Months
© Arctic-Images/Corbis