I tried planting my tomatoes two weeks earlier than usual this year. All this global warming talk finally got to me, I guess. A killing freeze on April 25 showed me the error of my ways.
Let's worry about 'the greening of the North' when there are farms in southern Greenland, as there were 1000 years ago.
You're not using your Wall O' Water protectors. we live just south of Green Bay. Our tomatoes have fruit on them already.