POWER OF ATTORNEY

       Know all by these presents, that the undersigned
hereby authorizes the Chief Executive Officer, the Chief
Financial Officer or the Chief Legal Officer of Verenium
Corporation, the undersigned's true and lawful attorney-in-
fact to:

(1)  execute for and on behalf of the undersigned,
in the undersigned's capacity as an officer and/or
director of VERENIUM CORPORATION (the
Company), Forms 3, 4, and 5 in accordance with
Section 16(a) of the Securities Exchange Act of
1934 and the rules thereunder;

(2)  do and perform any and all acts for and on
behalf of the undersigned which may be necessary
or desirable to complete and execute any such
Form 3, 4, or 5, complete and execute any
amendment or amendments thereto, and timely file
such form with the United States Securities and
Exchange Commission and any stock exchange or
similar authority; and

(3)  take any other action of any type whatsoever in
connection with the foregoing which, in the opinion
of such attorney-in-fact, may be of benefit to, in the
best interest of, or legally required by, the
undersigned, it being understood that the
documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of
Attorney shall be in such form and shall contain
such terms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.

       The undersigned hereby grants to each such
attorney-in-fact full power and authority to do and perform
any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of
the rights and powers herein granted, as fully to all intents
and purposes as the undersigned might or could do if
personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's designated
substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and
powers herein granted.  The undersigned acknowledges
that the foregoing attorneys-in-fact, in serving in such
capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of
the Securities Exchange Act of 1934.

       This Power of Attorney shall remain in full force and
effect until the undersigned is no longer required to file
Forms 3, 4, and 5 with respect to the undersigned's
holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a
signed writing delivered to the foregoing attorneys-in-fact.

       IN WITNESS WHEREOF, the undersigned has
caused this Power of Attorney to be executed as of this 15
day of February, 2008.

s/s  John A. McCarthy, Jr.