Read Paragraph 4 from the passage. As the Ice Age ended around 11,000 B. C., the Paleolithic period gave way to the Neolithic. As the glaciers retreated, changes in climate created changes in the life patterns of Neolithic people. In western Europe, for example, hunters who for centuries had fed their clans by following massive herds of reindeer found the game increasingly scarce as the global temperature warmed.

How does the phrase "global temperature" affect the passage?

It increases readers' awareness of the climate during the Paleolithic period.

It indicates how climate change affected people in western Europe during the Ice Age.

It implies that the passage is intended for people with an interest in meteorology.

It shows readers that the change in temperature was a trend, not something temporary.