BendingSpoons writes "More than 120 scientists across seven federal agencies have been pressured to remove the phrases 'global warming' and 'climate change' from various documents. The documents include press releases and, more importantly, communications with Congress. Evidence of this sort of political interference has been largely anecdotal to date, but is now detailed in a new report by the Union of Concerned Scientists. The House Oversight and Government Reform Committee held hearings on this issue Tuesday; the hearing began by Committee members, including most Republicans, stating that global warming is happening and greenhouse gas emissions from human activity are largely to blame. The OGR hearings presage a landmark moment in climate change research: the release of the 2007 report by the Intergovernmental Panel on Climate Change. The IPCC report, drafted by 1,250 scientists and reviewed by an additional 2,500 scientists, is expected to state that 'there is a 90% chance humans are responsible for climate change' — up from the 2001 report's 66% chance. It probably won't make for comfortable bedtime reading; 'The future is bleak', said scientists."