Er, after you calm down maybe you can explain how you output this environment? There seems to be an implication that this comes from a web application, however this looks very much like the kind of environment that you would find in an interactive shell on Linux for instance, and taken in that context this seems quite restrained - I appear to have twice as much stuff in %ENV.

/j\

use Data::Dumper;
print STDERR Dumper (\%ENV);
[download]

NETHACKOPTIONS=!autopickup,!mail,showexp,showscore,number_pad:1,hilite
+_pet
SSH_AGENT_PID=4203
HOSTNAME=xorl.intranet
TERM=xterm
SHELL=/bin/bash
HISTSIZE=5000
GTK_RC_FILES=/etc/gtk/gtkrc:/home/xorl/.gtkrc-1.2-gnome2
WINDOWID=35682814
OLDPWD=/tmp/liberty
QTDIR=/usr/lib/qt-3.1
USER=xorl
LS_COLORS=no=00:fi=00:di=00;34:ln=00;36:pi=40;33:so=00;35:bd=40;33;01:
+cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=00;32:*.cmd=00;32:*.exe=
+00;32:*.com=00;32:*.btm=00;32:*.bat=00;32:*.sh=00;32:*.csh=00;32:*.ta
+r=00;31:*.tgz=00;31:*.arj=00;31:*.taz=00;31:*.lzh=00;31:*.zip=00;31:*
+.z=00;31:*.Z=00;31:*.gz=00;31:*.bz2=00;31:*.bz=00;31:*.tz=00;31:*.rpm
+=00;31:*.cpio=00;31:*.jpg=00;35:*.gif=00;35:*.bmp=00;35:*.xbm=00;35:*
+.xpm=00;35:*.png=00;35:*.tif=00;35:
SSH_AUTH_SOCK=/tmp/ssh-XXGtnSON/agent.4151
SESSION_MANAGER=local/xorl.intranet:/tmp/.ICE-unix/4151
PATH=/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/ho
+me/xorl/bin
MAIL=/var/spool/mail/xorl
PWD=/tmp
INPUTRC=/etc/inputrc
XMODIFIERS=@im=none
EDITOR=/usr/bin/xemacs
LANG=en_US.UTF-8
GDMSESSION=Default
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
SHLVL=2
HOME=/home/xorl
GNOME_DESKTOP_SESSION_ID=Default
LOGNAME=xorl
LESSOPEN=|/usr/bin/lesspipe.sh %s
VALGAAV=xxx.xxx.xxx.xxx
DISPLAY=:0.0
G_BROKEN_FILENAMES=1
COLORTERM=gnome-terminal
XAUTHORITY=/home/xorl/.Xauthority
_=/usr/bin/env
[download]

So which part is breaking which part of your code? FWIW I tend to believe that if I am relying on anything being set in the environment for me then I am doing something wrong. If I need something I set it, otherwise I ignore it. I see other people fighting with cron and scripts being run from different shells etc and by and large I don't have those kinds of problems.