Band 7+: You should spend no more than 20 minutes on this task. The charts below show the parts per million of carbon dioxide in the atmosphere and the average temperature of four cities from the year 1750 to 2000. Write a report for a university lecturer describing the information. You should write at least 150 words.

The line graphs illustrate the amount of carbon dioxide (CO2) in the atmosphere and the average temperatures in four cities – London, St. Petersburg, Tokyo, and New York – between 1750 and 2000.

Overall, both CO2 levels and the temperatures in all four cities increased over the 250-year period. The most rapid growth for both figures occurred after 1900.

One particularly interesting fact highlighted by the figure is that the concentration of CO2 remained stable at around 280 ppm until 1850. After this point, the level began to rise, and after 1900, it saw a very sharp increase. By the year 2000, the amount of carbon dioxide had reached its highest point of approximately 370 ppm.

In terms of temperature, all four cities showed a clear upward trend. St. Petersburg was consistently the coldest city, with its temperature rising from roughly 4°C to 6°C. Tokyo and New York experienced the most significant growth. Tokyo’s temperature rose from 13°C to 16°C, while New York also saw a similar increase. London’s temperature started at 10°C and reached about 12°C by the end of the period.