The average temperature of the earth’s atmosphere has risen considerably since 1975, and the prevailing opinion among climate scientists is that this is attributable to human activity. Ever increasing emissions of greenhouse gases, such as CO², prevent radiated heat from escaping from the atmosphere
Global warming is well documented today, mainly through research coordinated by the Intergovernmental Panel on Climate Change (IPCC). The Panel’s warning is clear. If global warming continues, it will affect the climate and the environment in many ways:
• Melting of the polar icecaps
• Increasing desertification
• Shrinkage of the permafrost area
• Decrease
in the area available for agriculture
• Expansion of tropical rainforest climate areas
• Rising sea levels
•
More variable and extreme weather conditions
The greatest challenge facing the Panel is to prove that man-made CO² emissions are the most important cause of the build-up of CO² in the atmosphere. There are also other – natural – factors that can cause the earth’s temperature to rise.
In some (smaller) scientific communities the relationship between global warming and human activity is refuted or played down, but there is broad consensus among IPCC members that human contributions to global warming are serious and must be limited.
Subjects: Warmed-up globe, Melting ice meridians
Design: Enzo Finger
Values: NOK 8.00 – 8.00
Issue: 225,000 miniature sheets
Printing: Offset by Royal Joh. Enschedé, Netherlands
Sales prices:
First day cover: NOK 20.00
Presentation pack: NOK 21.00
Collector’s set: NOK 46.00
Collector’s sheet:
NOK 36.00