POWER OF ATTORNEY


KNOW ALL PERSONS BY THESE PRESENTS, that I, Earl B. Smith, hereby constitute and
appoint John W. Huey and Debra J. Bliven, and each of them, my true and lawful
attorneys-in-fact and agents, with full power of substitution and resubstitution
for me and in my name, place and stead, to sign any reports on Form 3 (Initial
Statement of Beneficial Ownership of Securities), Form 4 (Statement of Changes
in Beneficial Ownership of Securities) and Form 5 (Annual Statement of
Beneficial Ownership of Securities) relating to transactions by me in Common
Shares or other securities of Terra Industries Inc., and all amendments thereto,
and to file the same, with the Securities and Exchange Commission and the
appropriate securities exchange, granting unto said attorneys-in-fact and
agents, and each of them, or their substitutes, full power and authority to do
and perform each and every act and thing requisite or necessary to be done in
and about the premises, as fully to all intents and purposes as I might or could
do in person, hereby ratifying and confirming all that said attorneys-in-fact
and agents, and each of them, or their substitutes, may lawfully do or cause to
be done by virtue hereof.  This Power of Attorney shall be effective until such
time as I deliver a written revocation thereof to the above-named
attorneys-in-fact and agents.




Dated:  March 3, 2008	/s/ Earl B. Smith
		Earl B. Smith