Exhibit 23.1 Consent of Independent Certified Public Accountants --------------------------------------------------- We have issued our report dated June 5, 2002, accompanying the consolidated financial statements incorporated by reference in the Annual Report of Earth Search Science, Inc. on Form 10-K for the year ended March 31, 2002. We hereby consent to the incorporation by reference of said report in this Registration Statement of Earth Search Science, Inc. on Form S-8 pertaining to its 2003 Stock Compensation Plan. /s/ GRANT THORNTON LLP Seattle, Washington June 17, 2003