紐約市長彭博（Michael Bloomberg）在11日首次發表了紐約市歷年溫室氣體盤查結果，並且宣布：紐約市將在2007年5月主辦全世界的城市氣候高峰會。彭博說：「我們必須正視排山倒海而來的科學事實證據，氣候變遷已是千真萬確，我們要思考如何從任何角度來努力解決問題，找到如何降低溫室氣體排放的方法，以及為子孫後代建立更美好的未來。」
彭博市長於2006年12月的一場演講中提到：從現在開始到2030年，目標是把溫室氣體排放量減少30％。而此次公開溫室氣體排查結果就是起步。
以現在紐約市共有8200萬人口數字來看，至2030年止，預估會再增加100萬人口。分析顯示2005年時大紐約區的二氧化碳排放量約有5800萬噸，而79％來自於建築物。紐約的碳排放量佔全國總量的1％，比全美人均排放量少約三分之ㄧ。
在過去10年來，大紐約區的溫室氣體排放量已增加約8％。到2030年以前，預估會較2005平均量增加25％。
盤查結果顯示：市府所採取的具體措施，使得1995年至2006年的碳氣體排放量每年平均減少了44萬6千噸。
這些具體措施由紐約電力公司與紐約市簽訂的協議，包括提供建築物節能計畫經費，市內大眾運輸車輛使用替代能源，垃圾場沼氣再利用，以及交通號誌換用LED顯示等。
New York Mayor Michael Bloomberg Tuesday released the first comprehensive inventory of greenhouse gas emissions in New York City’s history and announced that New York will host mayors from large cities around the world at a C40 Large Cities Climate Summit in May. “You can no longer deny the science and bury your head in the sand,” said the mayor. “Climate change is real, and by looking at where and how we are contributing to that problem, we can identify how to reduce our emissions and create a better future for our children and grandchildren.”
The inventory will serve as the benchmark for reducing greenhouse gas emissions by 30 percent between now and 2030, a target Mayor Bloomberg set during a speech last December.
With a current population of 8.2 million people, New York is estimated to grow by one million residents between now and 2030. The analysis shows that citywide carbon dioxide equivalent, CO2e, emissions were approximately 58 million metric tons in 2005, with 79 percent coming from buildings. New York's carbon emissions were approximately one percent of 2005 U.S. totals, and less than a third of the average U.S. per capita level.
Citywide emissions have increased by about eight percent in the last 10 years, and are on trend to increase 25 percent above 2005 levels by 2030.
The inventory found that actions taken by the city from 1995 to 2006 resulted in the avoided emission of 446,000 metric tons of CO2e per year.
The past actions include an agreement between the city and the New York Power Authority that provides financing for energy efficiency projects in city buildings, the use of alternative fuel vehicles in the city's fleet, landfill methane recovery, and the conversion of traffic signals to LEDs.
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