00:00A 95-degree day is hot enough.
00:02Now imagine playing football on a field measured at 157 degrees.
00:06That's what broadcast crews reported during a recent professional football game in Nashville.
00:11Players said the heat softened or melted part of their cleats, forcing some of them to switch shoes.
00:17One coach also needed IV fluids.
00:19So why does artificial turf get so hot?
00:22Its synthetic fibers and infill absorb energy from direct sunlight.
00:25The surface holds that heat and radiates some of it upward.
00:28Natural grass stays cooler by releasing moisture from the grass and soil.
00:33Sunshine, wind, moisture, and field materials all affect the exact temperature.
00:38But artificial turf can become tens of degrees hotter than grass,
00:41showing why the air temperature doesn't always tell the whole story at field level.
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