Creating a bigger difference between the poleward temperature and equatorward temperature makes it more windy. why is that?

What are the answers for the following questions?

Extensive and unusual cold snaps have occurred here recently. is this evidence that global warming is lessening or not occurring? no—although the long-term trend is for warming, short-term weather patterns can still be variable. no—melting of glaciers and ice caps is making the oceans cooler, which can cause cold snaps. yes-- if global warming really were occurring, cold snaps wouldn’t happen. yes—due to global warming, weather patterns should be become less—not more—variable.

Write a 150word essay describing the effect of people's activities on the environment in the region.