1 Tropospheric Ozone Impacts Global Climate Warming In the first global assessment of the impact of ozone on climate warming, scientists at the NASA Goddard Institute for Space Studies (GISS), New York, evaluated how ozone in the lowest part of the atmosphere (the troposphere) changed temperatures over the past 100 years. Using the best available estimates of global emissions of gases that create ozone, the GISS computer model study reveals how much this single air pollutant and greenhouse gas has contributed to warming in specific regions of the world. Ozone was responsible for one-third to half of the observed warming trend in the Arctic during winter and spring, according to the new research. Ozone is transported from the industrialized countries in the Northern Hemisphere to the Arctic quite efficiently during these seasons. The findings will be published soon in the American Geophysical Union's Journal of Geophysical Research-Atmospheres. The impact of ozone air pollution on climate warming is difficult to pinpoint because, unlike other greenhouse gases such as carbon dioxide, ozone does not last long enough in the lower atmosphere to spread uniformly around the globe. Its warming impact is much more closely tied to the region it originated from. To capture this complex picture, the GISS scientists used a suite of three-dimensional computer models that starts with data on ozone sources and then tracks how ozone chemically evolved and moved around the world over the past century. The research was supported by NASA's Atmospheric Chemistry Modeling and Analysis Program. Animation (644x289) This animation shows anomalous global temperature averages from December through May in the years 1880 through 2000. 1 0 1884-01-01 1995-01-01 1884 1 1 1884-01-01 1885-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0001.png -90 90 -180 180 1885 1 1 1885-01-01 1886-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0002.png -90 90 -180 180 1886 1 1 1886-01-01 1887-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0003.png -90 90 -180 180 1887 1 1 1887-01-01 1888-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0004.png -90 90 -180 180 1888 1 1 1888-01-01 1889-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0005.png -90 90 -180 180 1889 1 1 1889-01-01 1890-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0006.png -90 90 -180 180 1890 1 1 1890-01-01 1891-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0007.png -90 90 -180 180 1891 1 1 1891-01-01 1892-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0008.png -90 90 -180 180 1892 1 1 1892-01-01 1893-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0009.png -90 90 -180 180 1893 1 1 1893-01-01 1894-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0010.png -90 90 -180 180 1894 1 1 1894-01-01 1895-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0011.png -90 90 -180 180 1895 1 1 1895-01-01 1896-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0012.png -90 90 -180 180 1896 1 1 1896-01-01 1897-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0013.png -90 90 -180 180 1897 1 1 1897-01-01 1898-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0014.png -90 90 -180 180 1898 1 1 1898-01-01 1899-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0015.png -90 90 -180 180 1899 1 1 1899-01-01 1900-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0016.png -90 90 -180 180 1900 1 1 1900-01-01 1901-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0017.png -90 90 -180 180 1901 1 1 1901-01-01 1902-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0018.png -90 90 -180 180 1902 1 1 1902-01-01 1903-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0019.png -90 90 -180 180 1903 1 1 1903-01-01 1904-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0020.png -90 90 -180 180 1904 1 1 1904-01-01 1905-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0021.png -90 90 -180 180 1905 1 1 1905-01-01 1906-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0022.png -90 90 -180 180 1906 1 1 1906-01-01 1907-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0023.png -90 90 -180 180 1907 1 1 1907-01-01 1908-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0024.png -90 90 -180 180 1908 1 1 1908-01-01 1909-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0025.png -90 90 -180 180 1909 1 1 1909-01-01 1910-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0026.png -90 90 -180 180 1910 1 1 1910-01-01 1911-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0027.png -90 90 -180 180 1911 1 1 1911-01-01 1912-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0028.png -90 90 -180 180 1912 1 1 1912-01-01 1913-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0029.png -90 90 -180 180 1913 1 1 1913-01-01 1914-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0030.png -90 90 -180 180 1914 1 1 1914-01-01 1915-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0031.png -90 90 -180 180 1915 1 1 1915-01-01 1916-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0032.png -90 90 -180 180 1916 1 1 1916-01-01 1917-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0033.png -90 90 -180 180 1917 1 1 1917-01-01 1918-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0034.png -90 90 -180 180 1918 1 1 1918-01-01 1919-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0035.png -90 90 -180 180 1919 1 1 1919-01-01 1920-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0036.png -90 90 -180 180 1920 1 1 1920-01-01 1921-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0037.png -90 90 -180 180 1921 1 1 1921-01-01 1922-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0038.png -90 90 -180 180 1922 1 1 1922-01-01 1923-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0039.png -90 90 -180 180 1923 1 1 1923-01-01 1924-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0040.png -90 90 -180 180 1924 1 1 1924-01-01 1925-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0041.png -90 90 -180 180 1925 1 1 1925-01-01 1926-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0042.png -90 90 -180 180 1926 1 1 1926-01-01 1927-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0043.png -90 90 -180 180 1927 1 1 1927-01-01 1928-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0044.png -90 90 -180 180 1928 1 1 1928-01-01 1929-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0045.png -90 90 -180 180 1929 1 1 1929-01-01 1930-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0046.png -90 90 -180 180 1930 1 1 1930-01-01 1931-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0047.png -90 90 -180 180 1931 1 1 1931-01-01 1932-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0048.png -90 90 -180 180 1932 1 1 1932-01-01 1933-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0049.png -90 90 -180 180 1933 1 1 1933-01-01 1934-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0050.png -90 90 -180 180 1934 1 1 1934-01-01 1935-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0051.png -90 90 -180 180 1935 1 1 1935-01-01 1936-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0052.png -90 90 -180 180 1936 1 1 1936-01-01 1937-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0053.png -90 90 -180 180 1937 1 1 1937-01-01 1938-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0054.png -90 90 -180 180 1938 1 1 1938-01-01 1939-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0055.png -90 90 -180 180 1939 1 1 1939-01-01 1940-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0056.png -90 90 -180 180 1940 1 1 1940-01-01 1941-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0057.png -90 90 -180 180 1941 1 1 1941-01-01 1942-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0058.png -90 90 -180 180 1942 1 1 1942-01-01 1943-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0059.png -90 90 -180 180 1943 1 1 1943-01-01 1944-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0060.png -90 90 -180 180 1944 1 1 1944-01-01 1945-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0061.png -90 90 -180 180 1945 1 1 1945-01-01 1946-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0062.png -90 90 -180 180 1946 1 1 1946-01-01 1947-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0063.png -90 90 -180 180 1947 1 1 1947-01-01 1948-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0064.png -90 90 -180 180 1948 1 1 1948-01-01 1949-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0065.png -90 90 -180 180 1949 1 1 1949-01-01 1950-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0066.png -90 90 -180 180 1950 1 1 1950-01-01 1951-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0067.png -90 90 -180 180 1951 1 1 1951-01-01 1952-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0068.png -90 90 -180 180 1952 1 1 1952-01-01 1953-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0069.png -90 90 -180 180 1953 1 1 1953-01-01 1954-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0070.png -90 90 -180 180 1954 1 1 1954-01-01 1955-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0071.png -90 90 -180 180 1955 1 1 1955-01-01 1956-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0072.png -90 90 -180 180 1956 1 1 1956-01-01 1957-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0073.png -90 90 -180 180 1957 1 1 1957-01-01 1958-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0074.png -90 90 -180 180 1958 1 1 1958-01-01 1959-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0075.png -90 90 -180 180 1959 1 1 1959-01-01 1960-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0076.png -90 90 -180 180 1960 1 1 1960-01-01 1961-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0077.png -90 90 -180 180 1961 1 1 1961-01-01 1962-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0078.png -90 90 -180 180 1962 1 1 1962-01-01 1963-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0079.png -90 90 -180 180 1963 1 1 1963-01-01 1964-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0080.png -90 90 -180 180 1964 1 1 1964-01-01 1965-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0081.png -90 90 -180 180 1965 1 1 1965-01-01 1966-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0082.png -90 90 -180 180 1966 1 1 1966-01-01 1967-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0083.png -90 90 -180 180 1967 1 1 1967-01-01 1968-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0084.png -90 90 -180 180 1968 1 1 1968-01-01 1969-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0085.png -90 90 -180 180 1969 1 1 1969-01-01 1970-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0086.png -90 90 -180 180 1970 1 1 1970-01-01 1971-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0087.png -90 90 -180 180 1971 1 1 1971-01-01 1972-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0088.png -90 90 -180 180 1972 1 1 1972-01-01 1973-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0089.png -90 90 -180 180 1973 1 1 1973-01-01 1974-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0090.png -90 90 -180 180 1974 1 1 1974-01-01 1975-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0091.png -90 90 -180 180 1975 1 1 1975-01-01 1976-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0092.png -90 90 -180 180 1976 1 1 1976-01-01 1977-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0093.png -90 90 -180 180 1977 1 1 1977-01-01 1978-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0094.png -90 90 -180 180 1978 1 1 1978-01-01 1979-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0095.png -90 90 -180 180 1979 1 1 1979-01-01 1980-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0096.png -90 90 -180 180 1980 1 1 1980-01-01 1981-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0097.png -90 90 -180 180 1981 1 1 1981-01-01 1982-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0098.png -90 90 -180 180 1982 1 1 1982-01-01 1983-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0099.png -90 90 -180 180 1983 1 1 1983-01-01 1984-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0100.png -90 90 -180 180 1984 1 1 1984-01-01 1985-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0101.png -90 90 -180 180 1985 1 1 1985-01-01 1986-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0102.png -90 90 -180 180 1986 1 1 1986-01-01 1987-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0103.png -90 90 -180 180 1987 1 1 1987-01-01 1988-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0104.png -90 90 -180 180 1988 1 1 1988-01-01 1989-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0105.png -90 90 -180 180 1989 1 1 1989-01-01 1990-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0106.png -90 90 -180 180 1990 1 1 1990-01-01 1991-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0107.png -90 90 -180 180 1991 1 1 1991-01-01 1992-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0108.png -90 90 -180 180 1992 1 1 1992-01-01 1993-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0109.png -90 90 -180 180 1993 1 1 1993-01-01 1994-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0110.png -90 90 -180 180 1994 1 1 1994-01-01 1995-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/frames/644x289/wms.0111.png -90 90 -180 180 Legend 1 3 http://svs.gsfc.nasa.gov/vis/a000000/a003300/a003338/temperature_colortable.png