| Fig. II-1. Secular change of annual average surface temperature of the
whole globe (land only) (1901-2000) |
 |
| Source: Meteorological Office observational data |
| Notes: The bar graph shows the average year difference of average temperature
of each year, the line graph shows the moving average of five years for eliminating the yearly changes, and the straight line shows the long-term trends. The average temperature is 30 year-average between 1971 and 2000. |
