Hi, I joined because I wanted to post about asphalt and how its color affects heat. That topic is what brought me here via Google. :shrug: I've just reorganized a part of my garden to be cooler and take advantage of the shade. So I've been thinking about what would happen if several people did that instead of installing rocks and pebbles in place of plants. By "several" I mean a percentage of our population. Maybe not half of the population, but several. Well, that's my motivation. I can't remember... can we do signatures?