Kind of reminds me of the daisyworld simulation.
It's been a long time since I read about it, so I may possibly miss some details.
Daisyworld simulates a planet entirely covered by 2 species of daisy- black ones and white ones.
The black ones are better able to absorb the suns rays, so initially outcompete the white ones, however because they're absorbing more of the rays, that leads to the planet warming up.
At a certain point the planets temperature gets too warm and the black daisies start dying off. Since the white daisies are better able to reflect the sun's rays, they're less effected by the increased temperature and start to outcompete the black ones.
After a while the white daisies are dominant, and since most of the planet is now reflecting the sun's rays the temperature starts to drop, until it gets to a point where it's too cold for the white daisies but since the black daisies can absorb more of the sun they start to outcompete the black ones again
Lather, rinse, repeat until they reach a sort of equilibrium.
Philly: A cheesesteak, hoagie, or Italian roast pork (with broccoli rabe, roasted hot peppers, and sharp provolone cheese) sandwich, and a citywide special (traditionally a 12oz PBR and a shot of Jim Beam for $5)
Yuengs & Wings (which rhymes) would be another solid choice
For the kids, maybe a birch beer and a soft pretzel