The first thing I noticed on my visit to Puebla was the dust. The dust comes from many sources. The fallow agricultural fields. The desert. The active Popocatepétl volcano. The two million inhabitants of the city and their automobiles. The air is windy and dry in the winter, so the valley sits constantly under a…

I’m traveling in Mexico this week, so a short post – check out the British Ecological Society’s annual photo contest! My image of Death Valley was the runner-up, and several other images were featured. You can see all the images at the BBC’s website.