"The US still has serious, fundamental concerns about this draft statement," the notes on the document read. "The treatment of climate change runs counter to our overall position and crosses multiple 'red lines' in terms of what we simply cannot agree to."
All 27 EU members have agreed to reduce greenhouse gas emissions by 20% by 2020 - building on Kyoto - and by 30% if a broader international agreement can be reached.
United States is the only developed country that has not ratified the Kyoto protocol which calls for developed countries to cut emissions by 5% below their 1990 level by 2012.
The United States has refused to ratify the Kyoto Protocol because of concerns about damage to the American economy. Bush administration officials have also balked because China and India are not part of it.
German chancellor Angela Merkel, who will be hosting the Group of Eight summit has been pushing hard along with outgoing British PM Tony Blair in private talks with President Bush to accept the proposals of the draft.