There's a new haiku meme going around, so I thought I'd chime in with an environmental geology contribution.
Vernal pools are a big pain in the ass when you have to work around them. I can't tell you how many times somebody has planned a bunch of fieldwork based on site visits in the late fall and winter, and then you get outside in the spring and the whole area has turned into a sodden mess. However, vernal pools are incredibly important for a number of critically endangered amphibians.
Spring in the hollows
but births happy frogs.