British Prime Minister Gordon Brown has suggested that a crucial climate change conference later this year should be attended by heads of governments to help break a possible "dangerous deadlock" in the vital UN-led discussions, according to dpa. Reports in Britain today said that Brown would urge world leaders at the United Nations General Assembly in New York and at the Group of 20 (G20) summit in Pittsburgh to consider attending the climate summit to be held in Copenhagen in December. The summit, so far intended to be held at the level of environment ministers, is expected to hammer out a framework on climate change regulations following the expiry of the Kyoto Protocol. "The negotiations are proceeding so slowly that a deal is in grave danger," Brown wrote in an article in Monday's edition of US magazine Newsweek. "Securing an agreement in Copenhagen will require world leaders to bridge our remaining differences and seize these opportunities. But I believe it can be done. And if it is necessary to clinch the deal, I will personally go to Copenhagen to achieve it." Brown, the first international leader to declare his readiness to attend the talks, has urged world leaders to make similar pledges, said the report. In his view, the climate change discussions are as much about the environment as they are about stimulating the global economy and investment.