From the Daily News:
During last week's sweltering temps, the turf reached temperatures in excess of 150 degrees, according to an infrared thermometer wielded by Geoff Croft, head of NYC Park Advocates and a longtime critic of the city's efforts to replace the parkland given to the Yankees for their new stadium.
For comparison, Croft measured the temperature of a patch of natural grass near the park on the same day and found it to be only 84 degrees.
Temperatures don't have to get into the 90s for the turf to overheat. Croft recorded similar readings of higher than 147 degrees on cloudy days when the air temperature never got higher than the low 80s.
"We understand that this is the one drawback of these turf fields," said city Parks Commissioner Adrian Benepe, "and we're doing all we can to address it."
The city spent an extra $160,000 to use a green-colored crumb rubber fill, which stays cooler than cheaper fill made of recycled tires. The new park will also feature three misting devices designed to cool parkgoers at the push of a button.