Click photo to enlarge FILE - In this Tuesday Aug, 16, 2005 file
photo an iceberg melts in Kulusuk, Greenland near the arctic
circle. Scientists who are fine-tuning a landmark U.N. report on
climate change are struggling to explain why global warming
appears to have slowed down in the past 15 years even as
greenhouse gas emissions keep rising. Leaked documents show
there is widespread disagreement among governments over how to
address the contentious issue in Sept. 23-26 stock-taking report
by the Intergovernmental Panel on Climate Change.
STOCKHOLM—Scientists working on a landmark U.N. report on
climate change are struggling over how to address a wrinkle in
the meteorological data that has given ammunition to global-
warming skeptics: The heating of Earth's surface appears to have
slowed in the past 15 years even though greenhouse gas emissions
keep rising.  For years, skeptics have touted what looks like a
slowdown in surface warming since 1998 to cast doubt on the
scientific consensus that humans are cookin