How to get environment variables from child shell

[Bob Sadri]

Hi
I have a perl script that calls a csh script.  The csh script sources some
environment variables (among others).  When the control comes back to my
perl script I like to use the environment variables set in the csh script.
However, since this has happened in the child shell environment I am not
able to see the variables.
Can someone help me with this problem?
Thanks
Bob