The line graph shows the average global temperatures from 1900 to 2000. Summarise the information by selecting and reporting the main features and make comparisons where relevant.
The provided line graph details the fluctuations in average global temperatures across the 20th century, commencing in 1900 and concluding in 2000. Overall, the data reveals a general trend of increasing temperatures, particularly accelerating in the latter half of the century. In the initial seventy years, from 1900 to 1970, global temperatures were relatively stable, fluctuating slightly around the 14.0°C to 14.3°C mark. The period began at approximately 14.0°C in 1900, saw a modest rise to about 14.2°C by 1940, and then plateaued, showing little variation until the 1970s. However, the final three decades of the century witnessed a dramatic shift. Starting from around 14.3°C in 1970, average global temperatures escalated significantly, reaching approximately 14.9°C by 2000. This substantial increase of roughly 0.6°C in just thirty years marked the highest temperatures recorded during the entire 100-year period.
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