UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 8-K

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CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 12, 2013

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ECOSPHERE TECHNOLOGIES, INC.

(Exact name of registrant as specified in its charter)

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3515 S.E Lionel Terrace, Stuart, FL 34997

(Address of Principal Executive Office) (Zip Code)

(772) 287-4846

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 14, 2013, Ecosphere Technologies, Inc. (“Ecosphere”) appointed Dennis McGuire, its Founder and Chief Technology Officer, as Chief Executive Officer and Chairman of the Board of Directors. Mr. McGuire replaced John Brewster who resigned as Chief Executive Officer and Chairman of the Board on March 12, 2013 for personal reasons. Mr. McGuire will remain as Ecosphere’s Chief Technology Officer, a position he has held since January 2011. From September 2005 until January 2011, Mr. McGuire served as Ecosphere’s President and Chief Executive Officer. From June 2008 until November 2008, Mr. McGuire was the Co-Chief Executive Officer of Ecosphere, sharing the role with Mr. Patrick Haskell. From November 2008 until August 2009, Mr. McGuire was the Chief Technology Officer of Ecosphere. Mr. McGuire is not receiving any additional compensation for serving as Chief Executive Officer. Mr. McGuire is 62 years old.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.