United States Doctorates and PhDs in Sustainability & Green Energy

Walden’s Doctor of Business Administration (D.B.A.) degree program is designed for experienced business professionals who want to translate their industry expertise into leadership positions as consultants or as executives within their organizations. De...

Graduate research degrees in Horticulture and Landscape Architecture emphasize creative problem solving with horticultural commodities (floriculture, landscape, nursery, pomology, turf, vegetable crops, viticulture), and are based on disciplinary and in...

The Ph.D. program focuses on sustainable production systems — systems that create goods and services using processes that are: non-polluting; conserving of energy and natural resources; economically viable; and safe and healthful for workers, communities,...

Field crop science covers a wide spectrum, from field-scale applied projects to cell physiology and biotechnology. Studies seek to improve crop productivity and quality, both nationally and internationally, and to identify physiological factors that cou...