Summer’s over! Time to get back to work. Had my time by the lake, eating cake drinking coffee, swinging in the hammock reading (and struggling at times with) Nick Lane’s The Vital Question. If he is to be believed then genes and natural selection are just a side show (so much for all that zoology I studied at Uni!), its chemistry that rules the roost. Life goes where the energy flows. Quite appropriate really, as I enter an autumn working with the chemistry of chalk; how it can act as a litmus to climate change. But time for just one more trip down to the lake. It’s windy at the moment, storm brewing, snails on the path, but the water is still warm. Roddy, you might recognise your Mexican hammock!