{"id":1917,"date":"2026-07-06T10:30:00","date_gmt":"2026-07-06T10:30:00","guid":{"rendered":"https:\/\/bkbc.net\/index.php\/2026\/07\/06\/scientists-say-corn-sweat\/"},"modified":"2026-07-06T10:30:00","modified_gmt":"2026-07-06T10:30:00","slug":"scientists-say-corn-sweat","status":"publish","type":"post","link":"https:\/\/bkbc.net\/index.php\/2026\/07\/06\/scientists-say-corn-sweat\/","title":{"rendered":"Scientists Say: Corn Sweat"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Corn sweat<\/strong> (noun, \u201cKORN SWET\u201d)<\/h2>\n<p>Corn sweat is moisture released by cornfields during summer heat, particularly in the central United States. The scientific term for corn sweat is evapotranspiration. This process combines evaporation and transpiration. Those are both ways that water moves from the land into the air during <a href=\"https:\/\/www.snexplores.org\/article\/explainer-earths-water-cycle\">Earth\u2019s water cycle<\/a>.<\/p>\n<p>Evaporation happens when liquid water turns into water vapor and rises into the air. In the case of corn sweat, water evaporates from the surface of the soil in farm fields.<\/p>\n<p>Transpiration is the movement of water from a plant\u2019s roots to its surfaces. There, water vapor escapes through tiny holes on the stems and leaves. These tiny holes are known as stomata. Releasing water vapor through transpiration is an essential function for plants.<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"680\" height=\"382\" src=\"https:\/\/www.snexplores.org\/wp-content\/uploads\/sites\/3\/2026\/06\/680_SS_cornsweat_animation.gif\" alt=\"an animation showing how water is released during evaporationa and transpiration\" class=\"wp-image-238299\" \/><figcaption class=\"wp-element-caption\"><span class=\"caption wp-caption-238299\">This animation shows how water is released into the atmosphere two ways. One is evaporation from soil. The other is transpiration from plants. Together, these two processes make up evapotranspiration. <\/span><span class=\"credit wp-credit-238299\">Mike Brophy\/<a href=\"https:\/\/www.nasa.gov\/missions\/landsat\/evapotranspiration-watching-over-water-use\/\" rel=\"noopener\">NASA<\/a><\/span><\/figcaption><\/figure>\n<p>The amount of water that plants add to the atmosphere varies. But in places with lots of cornfields, corn sweat can cause a spike in local humidity. The U.S. Department of Agriculture estimates that <a href=\"https:\/\/extension.osu.edu\/sites\/ext\/files\/imce\/About_docs\/Corn%20Sweat%20and%20Humidity%20articke-30Aug24.pdf\" rel=\"noopener\">corn sweat releases about 13,000 to 19,000 liters&nbsp;(3,500 to 5,000 gallons) of water per acre per day<\/a>. That\u2019s about a quarter of the water held in most swimming pools.<\/p>\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=LEGH1jpZ5XU\" rel=\"noopener\">Corn sweat is often blamed for muggy summer weather<\/a>. But the water released by crops during heat waves is only an estimated 2 to 5 percent of the total humidity.<\/p>\n<h2 class=\"wp-block-heading\">In a sentence<\/h2>\n<p>Humidity from crops is often attributed to corn sweat, but soybeans <a href=\"https:\/\/www.snexplores.org\/article\/explainer-earths-water-cycle\">transpire<\/a> too.<\/p>\n<p><a href=\"https:\/\/www.snexplores.org\/article\/scientists-say-your-weekly-word\">Check out the full list of&nbsp;<em>Scientists Say<\/em><\/a>.<\/p>\n<p class=\"bkbc-source\">Source: <a href=\"https:\/\/www.snexplores.org\" target=\"_blank\" rel=\"nofollow noopener\">Science News Explores<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Corn sweat (noun, \u201cKORN SWET\u201d) Corn sweat is moisture released by cornfields during summer heat, particularly in the central United States. The scientific term for [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":1918,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1917","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"_links":{"self":[{"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/posts\/1917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/comments?post=1917"}],"version-history":[{"count":0,"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/posts\/1917\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/media\/1918"}],"wp:attachment":[{"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/media?parent=1917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/categories?post=1917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bkbc.net\/index.php\/wp-json\/wp\/v2\/tags?post=1917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}