What keeps the coasts of great Britain and Norway from freezing in winter?

The Gulf Stream, an ocean current that originates in the Gulf of Mexico and flows across the Atlantic Ocean, keeps the coasts of Great Britain and Norway from freezing in winter. The Gulf Stream is a warm water current, and it helps to keep the waters around Great Britain and Norway warmer than they would otherwise be. This is important because when water freezes, it expands and can damage infrastructure. The Gulf Stream also helps to keep the air temperatures around Great Britain and Norway milder than they would otherwise be. This is important because cold temperatures can make it difficult for people to live in these areas. The Gulf Stream is a very important part of the global climate system, and it plays a vital role in keeping the coasts of Great Britain and Norway from freezing in winter.