VIENNA – Curbs needed to fight global warming could be less drastic than a 50-percent reduction in greenhouse gas emissions by 2050 favoured by the European Union, the United States’ chief climate negotiator said on Monday.
President George W. Bush agreed at a summit in Germany with his main industrial allies in June that UN climate reports showed that “global greenhouse gas emissions must stop rising, followed by substantial global emission reductions”.
However, the text of the agreement did not define “substantial”.
