text: While some advocates like to make grand, sweeping statements about rainforest loss and put in big numbers that make it sound catastrophic, Roger Sedjo and Marion Clawson, writing for Resources for the Future, dug into the available evidence and said, "Information about the tropical moist forests is relatively scant. What information we do have comes from anecdotal evidence provided by isolated investigations at single times and places than from systematic studies conducted over large areas and lengths of time A hard look at the available data supports the view that some regions are experiencing rapid deforestation. However, the view that this is a pervasive phenomenon on a global level is questionable." (Rational Readings, Julian Simon, p. 745)