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USDA / Agricultural Research Service

GLOBAL CHANGE AND PHOTOSYNTHESIS RESEARCH

Legal

USDA Nondiscrimination Statement

The United States Department of Agriculture (USDA) prohibits discrimination in its programs on the basis of race, color, national origin, sex, religion, age, disability, political believes, and marital or familial status. (Not all prohibited bases apply to all programs.) Persons with disability who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET center at (202) 720-2600 (voice and TDD). To file a complaint write the Secretary of Agriculture, U.S. Department of Agriculture, Washington, DC 20250 or call 1-800-245-6340(voice) or 202-720-1127 (TDD). USDA is an equal opportunity employer.

Commercial Endorsements Disclaimer

The use of trade, firm or corporation names in this publication (or page) is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the United States Department of Agriculture or the Agricultural Research Service of any product or service to the exclusion of others that may be suitable.

Government System Usage Policy

This information service operates on a U.S. Government computer system. This system is monitored to ensure proper operation, to verify the functioning of applicable security features, and for other like purposes. Anyone using this system expressly consents to such monitoring and is advised that if such monitoring reveals evidence of possible criminal activity, system personnel may provide the evidence of such activity to law enforcement officials. Unauthorized attempts to upload or change information; to defeat or circumvent security features; or to utilize this system for other than its intended purposes are prohibited.