This pattern pushes warm, dry African winds called siroccos toward Europe. These winds originate as hot, dry desert-air over Northern Africa and flow northward into the southern Mediterranean basin. The characteristics of the sirocco depend on the location where they are and accordingly this type of winds have many different names.
Global climate change is when a change in weather appears in an area where it normally wouldn't. This is normally a change in the temperature, precipitation and/or wind. An example would be the ice caps melting in Antarctica because heat is making its way in where it should not be.