World on fire

I've made another Virtual Earth mashup, this one showing the more than 21,000 wildfires on planet earth, using my own quick "spatial clustering query system" (i.e., that means you don't see all 21,000 fires if you're zoomed all the way out, which would take forever to load, but instead you see "clusters" of nearby fires, and they expand out as you zoom in closer).

See this site from the amazing "poly9" folks for my inspiration if you'd like to try something similar, although I'm doing my own algorithm as a) they only handle 5,000 points, and b) I wanted to try it ;-)