In recognition of（按照，承认） Earth Day's 40th anniversary, publisher Mary Ann Liebert, Inc. (www.liebertpub.com) will provide complimentary¹（问候的，称赞的） online access to its journals in the field of sustainability（永久性，持续性） , including Sustainability: The Journal of Record; Environmental Justice; and Ecopsychology through May 15. Each journal provides cutting-edge information about sustainability initiatives（创始，积极性） , the relationship between mankind and nature, and the protection of our citizens and our planet. In this month's issue of Sustainability: The Journal of Record (www.liebertpub.com/sus), Ray Anderson, the Founder² and Chairman of Interface³, reflects on "Earth Day, Then and Now." "In the Green" reports on what a number of organizations and institutions are doing to commemorate⁴ this auspicious⁵（吉利的，幸运的） anniversary, including Major League Baseball, Walt Disney Studios, Dow Chemical Co., and Northwestern University. The Journal documents the implementation⁶（履行，实现） of sustainability programs in higher education and business, and provides the central forum⁷ for academic institutions, the business community, foundations, government agencies, and leaders of green-collar endeavors（努力，尽力） to learn about one another's progress and programs and foster（养育，培养） collaborations for attaining⁸（获得，到达） mutually supportive objectives.

Environmental Justice offers a provocative⁹（刺激的，挑拨的） view of "Earth Day at the Crossroads of Sustainability and Justice," with contributions by Editor-in-Chief Sylvia Hood¹⁰ Washington, PhD, MSE, MPH, University of Illinois at Chicago, David Naguib Pellow, PhD, University of Minnesota, and Kristen Schrader-Frechette, PhD, University of Notre Dame¹¹, among others.

Now in its third year, Environmental Justice (www.liebertpub.com/env)explores the adverse¹²（不利的，相反的） and disparate（全异的，不同的） environmental burden impacting marginalized（排斥，忽视） populations and communities all over the world.

Articles in Ecopsychology (www.liebertpub.com/eco), edited by Thomas Joseph Doherty, PsyD, explore the relationship between environmental issues and mental health and well-being¹³, and examine the psychological, spiritual, and therapeutic¹⁴（治疗的） aspects of human-nature relationships, concern about environmental issues, and responsibility for protecting natural places and other species.