sky texture and scale

Hi all,

see image below:

i am trying to learn how to use environment texture.
in the bottom right is the image that i want to use. however, when i set up my nodes, the environment texture seems too and only show a small portion of the whole. I want to, in a sense, scale down the texture so that i can display more clouds (as the uv/image editor show)

*** Moderation ***
Moved from: Tutorials, Tips and Tricks
Reason: not a tutorial