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The article reports on research published in the "Journal of Geophysical Research--Atmospheres," which show that thousands of reflective white greenhouses in Almeria, Spain have been lowering local air temperatures. Local area pastureland has been used as greenhouse horticulture to increase vegetable production since the 1970s, according to the article. It is suggested that the cooling of 0.3° Celsius per decade since 1983 is caused by the greenhouse roofs' ability to reflect the sun's rays.