What economists call the green industry – nursery and greenhouse production, landscape services and horticultural product distribution – is worth an estimated $196 billion in revenues annually. Florida State University said this week the industry also brings more than two million jobs to the United States. The $196 billion estimate for revenue contributions by the industry includes additional impacts through the industry supply chain such as fertilizer and chemical costs. The study compared industry activity in 2013 to previous studies for 2002 and 2007-08. Green industry products include sod, flowers, bedding plants, tropical foliage, trees and shrubs, among other types of plants. The industry also includes many businesses that provide services such as landscape design, installation and maintenance, plus firms — such as lawn and garden stores — for wholesale and retail distribution of horticultural products.