The highly anticipated United Nations report on global warming is expected to affirm the link between human activity and global warming, but scientists are still having trouble explaining away the lull in rising global temperatures over the past 15 years despite rapidly rising greenhouse gas levels.
The lull in global warming has been noted by skeptics to show the flaws behind the science and the theory that human activities, primarily through burning fossil fuels, causes global temperatures to rise.
This has some governments worried, reports the AP, as documents show that the U.S. government along with some European nations tried to convince the report’s authors to downplay the lack of warming over the past 15 years.
The AP reports that “Germany called for the reference to the slowdown to be deleted, saying a time span of 10-15 years was misleading in the context of climate change, which is measured over decades and centuries.”
“The U.S. also urged the authors to include the ‘leading hypothesis’ that the reduction in warming is linked to more heat being transferred to the deep ocean,” the AP noted. “Belgium objected to using 1998 as a starting year for any statistics. …Using 1999 or 2000 as a starting year would yield a more upward-pointing curve. Hungary worried the report would provide ammunition for skeptics.”
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