A few weeks ago, I asked a tree expert what I should plant to replace my dead greenery, and do you know what he said? He said to plant specimens native to climates hundreds of miles south--plants of the deep South. They will thrive in the Midwest now, thanks to global warming, he said. This arborist was apolitical--he just knows our climate is changing, and wants his products to last. He treated it as a fact of life, not a political argument or a controversial statement. And you should, too.