Scientists long puzzled by the rapid decline in millions of Canadian boreal ducks since the 1970s think they may finally have the cause: global warming.
Yes, we have had warmer winters,BUT we have had coolers summers. Last summer for example, we only had 3-4 days over 30 C the year before maybe a dozen or so. When I was a kid growing up in the 70's and 80's it was HOT, everyday.