The Video Library will be closed from August 3 to 24. We will be able to respond to your requests again from August 25

CNRS video Library

Home > Detailed data sheet
My cart ()

Atmosphere, atmosphere

Series : Image and science : doubts about knowledge

  • Description
  • Storyboard
  00:26:00  2001  Color  Sound

The earth's temperature is going up, but is this due to natural warming or thoughtless human intervention? According to Gérard Mégie, an expert on the ozone layer, scientists now believe it is almost certain that humans are responsible for the greenhouse effect.In order to investigate climate change, researchers obtain core sample of ice from the earth's major glaciers, from which they can read off yearly climate fluctuations. Core samples obtained in Antarctica, which can reach a length of three km, reveal 400,000 years of climate history. Models for predicting future climates are still inexact, but one thing is certain: the percentage of carbon gases in the atmosphere has reached its highest level in 400,000 years.

Associate producer : Gédéon Programmes
Participation : CNC
Audiovisual processPrises de vues réelles.Utilisation d'extraits de films (station russe Vostok en Antarctique) et de photos d'archives.
Interventions en son direct et commentaire voix off. Musique.
Date of broadcasting2001 (La Cinquième)


Earth Sciences



Technical Sheet
Item No.964
PublicTeaching ; Large audience
Original Supportvideo Beta SP
Delivery supportBeta SP