Agence France Presse: US emissions of greenhouse gases are poised to rise by nearly a quarter over a key UN benchmark by 2025, the date set by President George W. Bush for stabilising this pollution, an International Energy Agency (IEA) expert said on Friday. The benchmark of 1990 is a closely watched — and politically sensitive — measure of commitment for tackling global warming. "With current policies, the greenhouse-gas emissions of the US will increase by 18 percent between 2005 and …