Sweaty corn is making it even more humid

Corn sweat is the process by which corn plants release moisture into the air to stay cool, and it brings the Midwest a surge in humidity every summer. Now, climate change and evolving agriculture are making the phenomenon even stickier. More corn is being planted more densely partly due to the drive for corn-based ethanol. And warmer temperatures are driving corn to sweat more as they work harder to cool off. It all adds up to more of the steamy misery seen across the United States in recent days. Corn sweat is the process by which corn plants release moisture into the air to stay cool, and it brings the Midwest a surge in humidity every summer. Now, climate change and evolving agriculture are making the phenomenon even stickier. More corn is being planted more densely partly due to the drive for corn-based ethanol. And warmer temperatures are driving corn to sweat more as they work harder to cool off. It all adds up to more of the steamy misery seen across the United States in recent days.  AP Technology and Science