Global Warming
01- 1000 years
02- CO2
03- Positive Feedback
04- 1C Increase
05- 2C Increase
06- 3C Increase
07- 4C Increase
08- 5C Increase
09- 6C Increase
10- Accelerated Tectonics
11- Ocean Basins
12- Building Storms
13- Warmer Waters
  Mars
14- Runaway Loops
15- Transition
16- Continuity of Worlds
17- Super Floods
18- Kasei Valles
19- Epicentre
20- Plate Boundaries
   
   
   

01 - 1000 years

Data from tree rings, corals, ice cores and historical records ( blue ) and thermometers ( red ).

Click for larger diagram


 

In the previous millenium, the rate and duration of warming during the 20th century was much greater than during any of the previous 9 centuries. Similarly, the 1990s were the warmest decade of that century and 1998 the warmest year of the previous 1,000 years. 

In 2001, Greenfacts, the Intergovernmental Panel on Climate Change, published the following information:

The average surface temperature of the Earth has increased over the 20th century by about 0.6C. This increase occurred mainly from 1910 to 1945 and 1976 to 2000. The increase is larger at night and over land area.

Temperatures have risen during the past four decades in the lowest 8 kilometers of the atmosphere.

Snow cover and ice extent have decreased.

The sea level has risen by 10 to 20 cm ( 4 to 8” ) during the 20th century. Ocean temperature has increased since the late 1950’s.

   
  Alan Lambert 2007