The Gulf Stream plays a significant role in maintaining the climate of the US East Coast and Western Europe. "We conclude with a high degree of confidence that Gulf Stream transport has indeed slowed by about 4% in the past 40 years." The full study is Here
Oh well, we had a good innings there didn't we?
Still, I'm in my 40s now, so if it doesn't completely collapse for about 50 years or so I'm pretty sure I won't have to worry about it.