"ucusa-howtoavoid-2007" . "How to Avoid Dangerous Climate Change: A Target for U.S. Emissions Reductions"^^ . "2007"^^ . "http://www.ucsusa.org/assets/documents/global_warming/emissions-target-report.pdf"^^ . "report" . . . . . . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . _:genid4 . _:genid4 . _:genid4 . _:genid4 . _:genid4 .