WHEREAS, The decade from 2000 to 2010 was the warmest on record and 2005 and 2010 tied for the. hottest years on record and,

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1 FILE NO COE 1 [San Francisco Commission on the Environment Support of Clean Air Act) RESOLUTION OF THE SAN FRANCISCO COMMISSION OF THE ENVIRONMENT URGING THE BOARD OF SUPERVISORS CITY AND COUNTY OF SAN FRANCISCO TO SUPPORT EFFORTS OF ENVIRONMENTAL PROTECTION AGENCY ADMINISTRATOR LISA P. JACKSON TO REDUCE GREENHOUSE GAS POLLUTION UNDER THE CLEAN AIR ACT. WHEREAS, The decade from 00 to 10 was the warmest on record and 05 and 10 tied for the 1; hottest years on record and, and, 1, WHEREAS, The current level of C02 in the atmosphere is approximately 392 parts per million3 (ppm) 111 ; WHEREAS, One of the world s leading climate scientists, Dr. James Hansen, stated in 08: Ulf humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted, paleoclimate evidence and climate change suggest that C02 will need to be reduced from its current 385 ppm to at most 350 ppmiv; and, WHEREAS, The Environmental Protection Agency determined that current and future greenhouse gas concentrations endanger public healthy, and according to the Global Humanitarian Forum climate change is already responsible every year for some 300,000 deaths, 3 million people seriously affected, and economic losses worldwide of U.S. $1 billion ; and, WHEREAS, Extreme weather events, most notably heat waves and precipitation extremes, are striking with increased frequency with deadly consequences for people and wildlife; in the United States in 11 alone, a 11, record 14 weather and climate disasters occurred, including droughts, heat waves, and floods that cost at least $US 1 billion each in damages and loss of human lives 111 ; and, WHEREAS, Climate change is affecting food security by negatively impacting the growth and yields of important cropsix, and droughts, floods and changes in snowpack are altering water suppliesx; and,

2 FILE NO COE 1 WHEREAS, Scientists have concluded that by 2100 as many as one in 10 species may be on the verge of 2 extinction due to climate changexi; and, 3 WHEREAS, The world s land-based ice is rapidly melting, threatening water supplies in many regions and 4 raising sea Ievelsxli, and Arctic summer sea ice extent has decreased to about half what it was several decades 1, 5 agox with an accompanying drastic reduction in sea-ice thickness and volumexiv, which is severely jeopardizing 6 ice-dependent animalsxv; and, WHEREAS, Sea level is rising faster along the U.S. East Coast than it has for at least 2,000 yearsxvi, is 8 accelerating in pacexvii, and could rise by one to two meters in this century, threatening millions of 9 Americans with severe flood ingxviii; and, 10 WHEREAS, For four decades, the Clean Air Act has protected the air we breathe through a proven, 11 comprehensive, successful system of pollution control that saves lives and creates economic benefits exceeding 12 its costs by many timesxix; and, 13 WHEREAS, With the Clean Air Act, air quality in this country has improved significantly since 0, 14 despite major growth both in our economy and, industrial production; and, 1 5 WHEREAS, Between 0 and 90, the six main pollutants covered by the Clean Air Act particulate matter and ground-level ozone (both of which contribute to smog and asthma), carbon monoxide, lead, sulfur and nitrogen oxides (the pollutants that cause acid rain) were reduced by between 4 percent and percent, and airborne lead was virtually eliminated; and, WHEREAS, The Clean Air Act has produced economic benefits valued at $2 trillion or 30 times the cost of regulation; and, 21 WHEREAS, The U.S. Supreme Court ruled in Massachusetts vs. EPA (0) that greenhouse gases are air pollutants as defined by the Clean Air Act and the Environmental Protection Agency has the authority to regulate them; and, WHEREAS, The city of San Francisco prides itself on being a leader in the fight against, climate change and for clean air: in 02, the Board of Supervisors passed a resolution commiffing the City to a greenhouse gas

3 FILE NO COE 1 (GHG) reduction goal of % below 90 levels by 1 2; in 08 the Board of Supervisors adopted an ordinance 2 extending the City s climate goals to establish new GHG reduction targets of % below 90 levels by, 40% 3 below by, and 80% below by 50; and as of 10, San Francisco has already reduced GHG emissions to % below 90 levels, making the City one of the first jurisdictions to meet and exceed Kyoto Protocol 5 targets NOW THEREFORE BE IT RESOLVED, That climate change is not an abstract problem for the future or one that will only affect far-distant places but rather climate change is happening now, we are causing it, and the 8 longer we wait to act, the more we lose and the more difficult the problem will be to solve; and we, the Commission 9 on the Environment urge the Board of Supervisors to pass a resolution on behalf of the residents of San Francisco, 10 supporting the efforts of the administrator of the Environmental Protection Agency, Lisa P. Jackson, and President 11 Barack Obama to move swiftly to fully employ and enforce the Clean Air Act to do our part to reduce carbon in our 12 atmosphere to no more than 350 parts per million. 13 BE IT FURTHER RESOLVED that the Commission Secretary shall forward a copy of this resolution to the 14 Board of Supervisors. 15 I hereby certify that this Resolution was adopted at the Commission on the Environment s Meeting on September, Monica Fish, Commission Secretary VOTE: Approved (5-0) AYES: Commissioners Tuchow, Gravanis, Arce, Stephenson and Wald 21 NOES: None ABSENT: Commissioners Mok and King Press Release, National Aeronautic Space Association, NASA Research Finds Last Decade was Warmest on Record, 09 One of the Warmest Years (Jan. 21, 10), wwwnasa.qov/home/hgnews/10/jan/hq 10-0 Warmest temps.html. National Oceanic and Atmospheric Administration, NOAA: 10 Tied for Warmest Year on Record, www. noaanewsnoaa.gov/stories2ol 1/ globalstats.html.

4 FILE NO COE 1 Co2now.org, What the World Needs to Watch, Earth System Research Laboratory of NOAA, 2 Trends in Atmospheric Carbon Dioxide, www. esrl. noaa.gov/gmd/ccgq/trends/. j j. Hansen et al., Target atmospheric C02: Where should humanity aim?, Open Atmos. Sci. 2, 2 (08), nasa.gov/abs/haoo4 1 Oc.html 3 V U.S. Environmental Protection Agency, Endangerment and Cause or Contribute Findings for Greenhouse 4 Gases under Section 2(a) of the Clean Air Act, 4 Federal Register (Dec. 15, 09) (to be codified at4o C.F.R. ch. 1), Global Humanitarian Forum, The Anatomy of a Silent Crisis (09), 5 p.1 of pdf. 6 Intergovernmental Panel on Climate Change (IPCC), Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (SREX) (12), pp//ipcc-wg2.gov/srex/; U.S. Global Change Research Program, Global Climate Change Impacts in the US: Global Climate Change (09), change; D. Coumou and S. Rahmstorf, A decade of weather extremes, Nature Climate Change (12), ViliNational Oceanic and Atmospheric Administration, Extreme Weather 11, 9 Press Release, World Meteorological Organization, 11: world s 10th warmest year, warmest year with La Nina on record, second-lowest Arctic sea ice extent (12), 10 int/pages/mediacentre/press releases/gcs 11 en. html. IX D.B. Lobell et at., Climate Trends and Global Crop Production Since 80, Science 333, 6 (July 29, 11), /05/04/science abstç; U.S. Global Change Research Program, Global Climate Change Impacts in the US: Agriculture (09), 12 www. ciobaichanqe.qov/pubiications/reports/scientificassessments/us-impacts/fuii reportlclimate chanqe-impacts-by-sector/agriculture. 13 XUS Global Change Research Program, Global Climate Change Impacts in the US: Water Resources (09), gov/publications/reports/scientific-assessments/us-impacts/full-report/climate-chanqe 14 impacts-bysector/water-resources. xiimd Maclean and R.J. Wilson, Recent ecological responses to climate change support predictions of 15 highextinctionrisk, PNAS 108, 13 (11, 08/30/1 3, summary at 1/0/ htm xlllntergovernmental Panel on Climate Change (IPCC), Climate Change 0: Synthesis Report (0), and data/publications ipcc fourth assessment report synthesis reporthtm, pp. 30, 49 of pdf. XIII J Stroeve et al., Arctic Sea Ice Extent Plummets in 0, EOS 89, 2 (January 8, 08), 18 p. 13 of pdf. xlvpolar Science Center, Arctic Sea Ice Volume Anomaly, version 2, edu/wordpress/research/projects/arctic-sea-ice-volume-anomaly/; R. Kwok and D.A. Roth rock, Decline in Arctic sea ice thickness from submarine and ICESat records: 58-08,Geophysical Research Letters 36, Li 5501 (09), org/pubs/crossref/09/09gl shtml. XV Center for Biological Diversity and Care for the Wild International, Extinction: It s Not Just for Polar Bears (10), 2I law institute/the arctic meltdown/arctic extinction report.ht ml. XVIAC Kemp et at., Climate related sea-level variations over the past two millennia, PNAS 108, 110 (11), summary at 1/06/ htm. XVII MA. Merrifield et al., An Anomalous RecentAcceleration of Global Sea Level Rise, Journal of Climate, 52 (08), XVIII B.H. Strauss, Tidally adjusted estimates of topographic vulnerability to sea level rise and flooding for the

5 FILE NO COE 1 contiguous United States, Environmental Research Letters (12), summary at XIX 2 For Clean Air Act facts, see Center for Biological Diversity, The Clean Air Act Works (11), law institute/global warming litigation/clean air act/pdfs/cl 3 eanairactworks 0311.pdf; and U.S. Environmental Protection Agency, The Benefits and Costs of the Clean AirAct, 0 to 90(9), and U.S. Environmental Protection Agency, The 4 Benefits and Costs of the Clean AirAct, 90 to 10(99), San Francisco Board of Supervisors, Resolution : Supporting Efforts to Reduce Greenhouse Gas Emissions, City 5 and County of San Francisco, 12 February 02. XXI San Francisco Board of Supervisors, Ordinance : Climate Change Goals and Action Plan Ordinance, City and 6 County of San Francisco, 26 May 08. XXII San Francisco Department of Environment, San Francisco Community GHG Emissions Inventory 10, March I