Oregonian: Nowhere on Earth can you find forests as tall and vast as those in the Pacific Northwest. They make Canada’s great boreal forests look like shrubs. Amazon rain forest trees are mere halflings by comparison. On a scale from one to 10, our forests go to 11. That’s strikingly clear in the first global-scale map charting the heights of the world’s forests. Michael Lefsky, a former Oregon State University scientist now at Colorado State University, devised a way to combine millions of …