Why does the GSM library attach interrupts on ALL Arduino PINs?

Hardware Arduino GSM Shield
4

Best regards,

Currently I have arduino club in high school at the Salesian College of Duitama in Colombia.

We are working on a project that aims to integrate these weather sensors:

With this code (which requires interrupts on pin 2 or 3)
http://home.comcast.net/ ~ saustin98/misc/WeatherStationADC.txt

In a connected arduino gsmshield

We want the report of the measurements will be sent to a server via the GSM shield, however because the gsm shield uses pins 2 and 3 do not know how to accomplish anemometer capture information (the sensor that requires interruptions)

Is it possible to capture information with interruptions in the same assembly arduino or this not possible?

Thanks in advance