Exaggerated just a little.
Check it out:

A scholarly paper explaining why predictions made by climate computer models used by the United Nations’ Intergovernmental Panel on Climate Change (IPCC) tend to exaggerate global warming has ignited a political firestorm.

Dr. Wei-Hock “Willie” Soon, a solar physicist at the Harvard-Smithsonian Center for Astrophysics, came under attack by environmentalists after co-authoring a peer-reviewed paper explaining “the widening discrepancy between prediction and observation” in climate change models, and members of Congress soon took sides.