Heading to a conference on the other side of the North American continent takes me from Eastern oak-hickory forest and old fields to the damp western slopes of the Cascades. I may not see much in the way of natural areas in downtown Portland, but it is certainly a city of gardens, parks, and focused (and contained) urban growth. Rosehill Cottage chair My part of North America (the Southeast) exemplifies sprawl and a larger ecological travel footprint, according to an expert interviewed on our CU-produced program (Your Day) for SC-ETV Public Radio, aired as I was driving to the airport. There’s certainly irony in that, but I guess I believe in the benefits of travel, and hope the carbon offset programs do some good! But he also spoke about how Portland had made a choice between expanding highways and mass transit, opting for transit. I’ll take a light rail system from the airport to the conference hotel for about $2.30. If I have time to go to the other side of the Willamette River,...