"TOYAKO, Japan - World leaders embraced for the first time on Tuesday an ambitious but nonbinding goal of slashing greenhouse-gas emissions in half by midcentury to stave off global warming. Unimpressed environmentalists called the effort too slow and too uncertain. "

"Leaders of some of the world's richest nations praised the agreement, which endorsed President Bush's insistence that fast-developing countries like China and India join in the effort. But one environmental critic suggested that by 2050 those leaders would be forgotten and "the world will be cooked."