Global climate change will make most places hotter, some places colder, and some places under water.
Changes are not linear and gradual but rather sudden and in some cases exponential.
If the gulf stream stops, europe will most probably go into an ice-age, and most of the world will be affected.
Don't believe those who downplay this phenomenon or the importance of the need to act.
I highly recommend the movie "an inconvenient truth" - watch the trailer and visit the film's website at http://www.climatecrisis.net/