A climate conference opened on Tuesday to renewed concern about the worsening threat of global warming and appeals from Britain to its ally, the United States, not to stand on the sidelines.
British Environment Secretary Margaret Beckett, in a speech to open the three-day meeting of more than 100 scientists, said all countries emitted greenhouse gases and so the problem required an international response.
"A significant impact (on the world's climate system) is already inevitable," she said. "What is certainly clear is that temperatures will go on rising... most of the warming we are expecting over the next few decades is now virtually inevitable."
Beckett warned: "No one country, not even one continent, can solve the problem by acting alone."
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