Trying to slim down my installation

[Steven I Usdansky]

At 79 MB, libgweather is one of the larger packages I have installed. 
Now, I think, "I really don't need libgweather, I'll just remove it". 
Just to be safe, I do a 

~# rpm -q --whatrequires libgweather
no package requires libgweather

and think cool, time to uninstall libgweather. However,

~# rpm -e libgweather
error: Failed dependencies:
    libgweather.so.1 is needed by (installed) evolution-data-server-2.27.2-1.fc12.i586
    libgweather.so.1 is needed by (installed) gnome-panel-2.26.2-2.fc12.i586
    libgweather.so.1 is needed by (installed) gnome-applets-1:2.27.2-1.fc12.i586

I seem to be getting conflicting information here. To which app(s) belong(s) the bug(s)?