This graph shows an interpretation of temperatures based on the change in isotopes in ice-core data.This graph implies that:

Question

Quizplus · Accepted Answer

The graph shows a clear decline in temperature from the late 1500s to the late 1700s, making the coolest time period on this data set from around 1500 to the last part of the 1700s. The graph also shows a significant temperature increase starting in the late 1800s, which implies that current temperatures are by far the hottest based on this record. This suggests that atmospheric warming started as early as the late 1700s. Therefore, all of these choices are correct.

This Graph Shows an Interpretation of Temperatures Based on the Change