Are you aware that the Longleaf Pine and the Loblolly Pine may be the first of North Carolina's indigenous trees to be adversely affected by climate change? 

These trees are monecious, meaning that individual trees have male catkins and female cones. Male catkins produce large amounts of pollen that is carried by wind to fertilize the immature female cones or conelets. Fertilized conelets eventually produce seeds. 

Various changes in air quality such as temperature, particulate matter (PM), and volatile organic compounds (VOC) for extended periods can disrupt the ratio of catkins and cones, which can potentially reduce the ability of these pine trees to reproduce. 

It's definitely something to think about next time you're in Umstead State Park.