RUSUTSU, Japan — The Group of Eight leading industrial nations today endorsed halving world emissions of greenhouse gases by 2050, edging forward in the battle against global warming but stopping short of near-term targets.

The G-8 countries — the United States, Japan, Russia, Germany, France, Britain, Canada and Italy — also called on all major economies to join in the effort to stem the potentially dangerous rise in world temperatures.

The G-8 last year at a summit in Germany pledged to consider the 2050 target, and this year's Japanese hosts had hoped to solidify that commitment at the meeting in Toyako, northern Japan.

The G-8 has been under pressure to secure commitments by wealthy nations to push forward stalled U.N.-led talks on forging a new accord to battle global warming by the end of next year.

KABUL, Afghanistan — Afghan officials have evidence that foreigners were behind a bombing against India's embassy in Kabul, President Hamid Karzai's spokesman said today, implying that Pakistan orchestrated the attack.The spokesman, Humayun Hamidzada, did not name Pakistan's intelligence agency but told reporters it was "pretty obvious" who was behind Monday's bombing, which killed 41 people and wounded 150.An Afghan security report released earlier today found that the bombing could not have succeeded without the support of foreign intelligence agencies, another reference to Pakistan, India's archrival."The sophistication of this attack ... everything has the hallmark of a particular intelligence agency that has conducted similar attacks inside Afghanistan in the past," Hamidzada said.