Today was one of the coldest days we've had so far this season, and it feels like winter is setting in at last. Then again, look how green the grass is, and tomorrow the temperatures here in Massachusetts will climb into the 50s. This fall's weather reminds me of another warm pattern we experienced in 1998, now recognized as an early indicator of the climate changes we are experiencing now. Still, walking along the Brook Path today was lovely with no real wind to speak of, lots of blue sky and warm sun on my skin. I expect the ground will be covered with snow the next time I walk here.