NEWSWEEK

The ongoing debate over the impact of mankind on the environment took a turn last week,when a major US government study asserted that climate change is "undeniable," and that the scientific evidence of human culpability is "unequivocal". Marcus Doyle offers a different study of what he calls "man's footprint" in the following photographs, which examine the way manmade structures conflict with nature. Doyle says these jarring contrasts are so ubiquitous they are almost invisible. But photographs force people to focus. Sometimes the impact is obvious, and sometimes not. But it's always there.