Researcher says global warming could be slowed (The Salt Lake Tribune) It is possible for humankind to restore the global climate to equilibrium, but only if people drastically cut the pollution that contributes to climate change, said a leading expert on global warming. The natural balance will be restored only when carbon dioxide and other greenhouse gasses dip to 25 percent or 30 percent of current levels, said Kevin Trenberth, who leads the climate analysis [News Source]