"Up to" is Comcast weasel words language, in which -10c is also in that set. It's at best garbage science reporting. Best answer: give GIS heatmaps that show

"Up to" is Comcast weasel words language, in which -10c is also in that set. It's at best garbage science reporting. Best answer: give GIS heatmaps that show variance of temp from in-city to nearby large green space. Then we can talk. (I see the urban heatisland effect locally. But 1 instance isn't science. Doing the math AND displaying it correctly is.)