MAN-MADE CLOUDS- PHOTOS BY ROSALIND
PETERSTON, WWW.CALIFORNIASKYWATCH.ORG
NASA NEWSLETTER (2005)
Persistent contrails are “trapping warmth in the
atmosphere.”
 Persistent contrails produce man-made clouds
that could negatively impact agricultural crop
production.
 “Any increase in global cloud cover will contribute
to long-term changes in Earth’s climate. Likewise,
any change in Earth’s climate may have effects on
natural resources…”

2009 JET LEAVING CONTRAIL PICTURE BY
BRENDAN O.
STOP AND START PERSISTENT CONTRAILS
BURST
RIBBED TRAIL
ET LEAVING CONTRAIL OVER UKIAH, CA
2009
JET LEAVING PERSISTENT JET CONTRAIL
MONTANA SKIES 2007-2008
PERSISTENT JET CONTRAIL IN WILLITS, CA
AUGUST 12, 2009 BY BRENDAN OLEARYFEATHER
X’S AND RIBBED TRAIL
EXPANDED X-LARGE TRAIL
X-LARGE TRAIL
ARIZONA- PERSISTENT PARALLELS
OHIO
NORTH GLENN, COLORADO
ESPANOLA, NEW MEXICO
IDAHO
LAS VEGAS, NEVADA
SOUTHERN OREGON
JETS LEAVING PERSISTING JET CONTRAILS
DAVIS, CA BY ROSALIND 2008
SOUTHERN OREGON PERSISTENT JET
CONTRAIL BLITZ SEPTMBER 7, 2009
JET LOOP + MAN-MADE CLOUDS + WHITE HAZE
CALPELLA CA BY ROSALIND SEPTEMBER 12,
2004
EXPANDED_PJC_WILLITS_8-12-09
PERSISTENT JET CONTRAILS OVER WILLITS, CA
AUGUST 12, 2009 BY BRENDAN OLEARY
MAN-MADE CLOUDS UKIAH, CA MAY 28, 2002
BY ROSALIND
PERSISTENT JET CONTRAILS & MAN-MADE
CLOUDS CALPELLA, CA BY ROSALIND APRIL 1,
2005
HAZE + MAN-MADE CLOUDS LAKE
MENDOCINO, UKIAH, CA BY ROSALIND
BLACK CONTRAILS + WHITE HAZE + MAN-MADE
CLOUDS UKIAH, CA DECEMBER 10, 2004 BY
ROSALIND
MAN-MADE CLOUDS WITH NEW JET CONTRAILS
OVER WILLITS, CA BY BRENDAN OLEARY #6
AUGUST 12, 2009
BLACK CARBON QUESTION - MAN-MADE
CLOUDS REDWOOD VALLEY, CA APRIL 1,
2005 BY ROSALIND.
MAN-MADE CLOUDS & PERSISTING JET
CONTRAILS REDWOOD VALLEY, CA BY
ROSALIND AUGUST 24, 2004
UKIAH, CA
SKYVAULT
BEGINNING OF BURST PATTERN
UKIAH, CA
UKIAH, CA
X-FILES
X VIBRANT SPECTRUM