Here is different reference regarding global temperature:
It's explanation with graph:
"Figure 6 A schematic reconstruction (solid line) of mean global surface temperature through the last 100 million years, based on analyses of various marine and terrestrial deposits. The dashed-line extension is a prediction of future trends through the coming 400 years, based on the assumption of substantial utilization of the fossil fuel reservoir. The vertical line shows the approximate range of surface temperature in climate model predictions for a doubling of CO2 levels, at about 100 years in the future."
Caption:
"Figure 2 Variations in regional surface temperatures for the last 18,000 years, estimated from a variety of sources. Shown are changes in°C, from the value for 1900."
Caption:
Figure 1 Example of regional variations in surface air temperature for the last 1000 years, estimated from a variety of sources, including temperature-sensitive tree growth indices and written records of various kinds, largely from western Europe and eastern North America. Shown are changes in regional temperature in°C, from the baseline value for 1900.
http://www.gcrio.org/CONSEQUENCES/winter96/geoclimate.html
These guys are arguing that global warming caused by human activity is a serious problem.
Space/Science » in reply to Why am I not surprised?
re: Why am I not surprised?
The whole thread (53 posts)
- Greenhouse Gas not behaving
- re: Greenhouse Gas not behaving
- re: 4) The climate models are unreliable
- You enjoy sweltering in 50 celsius temperatures, Nick? (n/t)
- Getting a little excited about a Guardian science article, aren't you?
- re: Greenhouse Gas not behaving
- No
- Maybe
- If one doesn't understand something...
- re: Maybe
- Maybe not.
- re: Maybe not.
- re: Maybe not.
- re: Maybe not.
- I must withdraw...
- re: Maybe not.
- re: Maybe not.
- re: Maybe not.
- Maybe not.
- Maybe
- No
