Because G needs to refer to serious research while writing the book on local geology and because it's cheaper than paying for an online academic library subscription, he has signed up for an OU ecology course. (It makes sense to him!) Of course this means he has to do the experiments and assignments, so this morning we had a little expedition to place a couple of thermometers around an oak tree. This is the view from the tree. As you can see, the weather is particularly nice for October and everywhere is still very green.