Atlantic Ocean cooled or warmed when blowing over these currents influence adjacent land areas. The Gulf Stream and its northern extension towards Europe, the North Atlantic Drift is thought to have at least some influence on climate. For example, the Gulf Stream helps moderate winter temperatures along the coastline of southeastern North America, keeping it warmer in winter along the coast than inland areas. The Gulf Stream also keeps extreme temperatures from occurring on the Florida Peninsula. In the higher latitudes, the North Atlantic Drift, warms the atmosphere over the oceans, keeping the British Isles and north-western Europe mild and cloudy, and
Atlantic Europe in close cultural contact from at least the mid 3rd millennium BC, contributing to what would emerge as the Celtic culture of the West/Central European Iron Age. Archaeologists have noted that the prehistoric peoples of Atlantic Europe presented common traits, as shown by artifacts, artistic and architectural styles found in the region which attest to at least some form of trade and/or cultural link. In addition, a number of genetic studies seem to interrelate specific groups of population in parts of Atlantic Europe in contrast with, for example, Central or Mediterranean Europe. Some examples of early cultural contact are the