The logging prevented in an average conservation project simply moves to an unprotected area. As a result, this kind of conservation effort is becoming ineffective, especially as it relates to preserving the earth’s rainforests to mitigate climate change.
From onEarth contributor, Brian Palmer (onEarth is published by the Natural Resources Defense Council) —
…conservationists must coordinate their efforts at both the national and the international level. So far, however, global attempts to get on the same page have basically failed. According to a 2007 study in the journal Ecological Economics, at least 42 percent of the logging prevented in an average conservation project simply moves elsewhere. In many cases, that figure can be as high as 95 percent—rendering conservation efforts essentially useless from a climate change perspective.
Salem Alliance for the Environment 