NASA Daily News Summary
For Release:  August 29, 2000
Media Advisory m00-169


SUMMARY


NEWS RELEASES

  NEW VIEW ON THE CULPRITS OF CLIMATE CHANGE PUBLISHED



VIDEO     ***ALL TIMES EASTERN***


  VIDEO FILE FOR AUGUST 29, 2000

  UPCOMING TELEVISION EVENTS



SPECIAL ANNOUNCEMENT



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NEWS RELEASES


NEW VIEW ON THE CULPRITS OF CLIMATE CHANGE PUBLISHED

     Since climate change affects everyone on Earth, scientists
have been trying to pinpoint its causes. For many years,
researchers agreed that climate change was triggered by what they
called "greenhouse gases," with carbon dioxide from burning of
fossil fuels such as coal, oil, and gas, playing the biggest role.
However, new research suggests fossil fuel burning may not be as
important in the mechanics of climate change as previously
thought.

     NASA funded research by Dr. James Hansen of the Goddard
Institute for Space Studies, New York, NY, and his colleagues,
suggests that climate change in recent decades has been mainly
caused by air pollution containing non-carbon dioxide greenhouse
gases, particularly tropospheric ozone, methane,
chlorofluorocarbons (CFCs), and black carbon (soot) particles.

     Since 1975, global surface temperatures have increased by
about 0.9 degrees Fahrenheit, a trend that has taken global
temperatures to their highest level in the past millennium.

Contact at NASA Headquarters, Washington, DC:  David E. Steitz
(Phone 202/358-1730)
Contact at NASA Goddard Space Flight Center, Greenbelt, MD:
Cynthia M. O'Carroll (Phone: 301/614-5563)


For full text see:
ftp://ftp.hq.nasa.gov/pub/pao/pressrel/2000/00-133.txt



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If NASA issues any news releases later today, we will e-
mail summaries and Internet URLs to this list.

Index of 2000 NASA News Releases:
http://www.nasa.gov/releases/2000/index.html

Index of 1999 NASA News Releases:
http://www.nasa.gov/releases/1999/index.html



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Video File - August 29, 2000

ITEM 1 - NOAA-L PRE-LAUNCH VIDEO  - GSFC
ITEM 2 - GLOBAL CLIMATE CHANGE - GSFC (REPLAY)
ITEM 3 - LATEST VIEWS OF WESTERN U.S. FIRES (REPLAY) -GSFC
  ITEM 3a - AEROSOL CONCENTRATIONS



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ANY CHANGES TO THE VIDEO LINE-UP WILL APPEAR ON THE NASA VIDEO
FILE ADVISORY ON THE WEB AT

ftp://ftp.hq.nasa.gov/pub/pao/tv-advisory/nasa-tv.txt

WE UPDATE THE ADVISORY THROUGHOUT THE DAY.

The NASA Video File normally airs at noon, 3 p.m., 6 p.m., 9 p.m.
and midnight Eastern Time.



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UPCOMING TELEVISION EVENTS


August 29, Tuesday
- 11:00 a.m. - STS-106 Satellite Validation Testing - MSFC
- 1:00 p.m. - STS-106 Satellite Validation Testing - JSC
- 2:00 p.m. - STS-106 Satellite Validation Testing - DFRC

August 30, Wednesday
- 9:00 a.m. - STS-106 Satellite Validation Testing  - MILA

August 31, Thursday
- 6:00 - 10:00 a.m. - Video Stabilization and Resolution Live News
  Interviews - MSFC
- 6:00 p.m. - Astronaut Candidate Class 0f 2000 Introduction to
  the Media - JSC


For a complete list of upcoming live television events, see
http://www.nasa.gov/ntv/breaking.html



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Unless otherwise noted, ALL TIMES ARE EASTERN.

NASA Television is available on GE-2, transponder 9C at 85 degrees
West longitude, with vertical polarization. Frequency is on 3880.0
megahertz, with audio on 6.8 megahertz.

Refer general questions about the video file to NASA Headquarters,
Washington, DC: Ray Castillo, 202/358-4555, or Fred Brown,
202/358-0713, fred.brown@hq.nasa.gov

During Space Shuttle missions, the full NASA TV schedule will
continue to be posted at:
http://spaceflight.nasa.gov/realdata/nasatv/schedule.html

For general information about NASA TV see:
http://www.nasa.gov/ntv/



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SPECIAL ANNOUNCEMENT


Digital Earth Community Meeting

The 4th Digital Earth Community Meeting will held on Tuesday,
Sept. 19, 2000, to facilitate the evolution of Digital Earth, a
NASA-led digital representation of the planet that will allow
people in government, academia, and the private sector to explore
and interact with vast amounts of natural and cultural information

The morning's sessions will focus on planning for Digital Earth
2001 Conference and the afternoon will be devoted to discussion of
the Digital Earth Alpha Versions, Interoperability, and commercial
presentations.

Although the meeting is open to all, presentations are limited in
number and may last only 10 minutes. The meeting will be held in
the National Geographic Society Auditorium in Washington, DC, from
8:15 a.m. to 5:00 p.m.

For information and to reserve a place at the meeting, contact Dr.
Amy Frederick, (301) 286-4058 or via email at
afrederi@pop700.gsfc.nasa.gov. Space is limited and will be
allocated on a first come basis.

For information about Digital Earth, see
http://www.digitalearth.gov.



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Contract Awards

Contract awards are posted to the NASA Acquisition information
Service Web site: http://procurement.nasa.gov/EPS/award.html



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end of daily news summary