Rising temperatures, extreme weather, wildfires, drying aquifers. The West Coast of North America is putting on a show. This year, Nova Scotia, where I live, has been spared a lot of this, at least so far. It has a temperate climate, especially the Atlantic Coast that sticks out into the moderating influence of the Gulf Stream. Still, even here the impact of human-generated climate change is on a slow creep. Let’s look back a couple of hundred years. A warming climate plus human intervention have been changing the biodiversity for centuries. Southern species have been moving north for along time. In the early 20th century, Nova Scotia had caribou and wolves. Then came moose, white-tailed deer, and coyotes. No more caribou and wolves. Striped bass, a southern species, is still considered threatened off our shores. But as the coastal waters warm they are now so numerous they are gobbling up