The latest 2017 statistics for global greenhouse vegetable growing areas by continent has been compiled by Cuesta Roble Consulting.
The breakdown is:
Europe- 173,561 ha.
South America- 12,502 ha.
North America- 7,288 ha.
Asia- 224,974 ha.
Africa- 36,993 ha.
Oceania- 2,036 ha.
Antarctica - 0.02 ha. (research station pilot program)
The data sources for this information are official government statistics, published research papers and other verifiable publications. Although many governments do not publish statistics yearly, known new projects have been documented and the estimated world total greenhouse vegetable area is now 489,214 ha.
Country-specific details, definitions and references are listed in the publication: “International Greenhouse Vegetable Production- Statistics, 2017 edition”, which is available at cuestaroble.com.