Carbon dioxide is natural. It is not harmful. It is part of Earth's life cycle...

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• William Blake

  Poet

  Monday, Nov 28, 1757
  Sunday, Aug 12, 1827

• Henry David Thoreau

  Author

  Saturday, Jul 12, 1817
  Tuesday, May 06, 1862

• Marcus Aurelius

  Roman Emperor

  Saturday, Apr 26, 0121
  Friday, Mar 17, 0180

• Thomas Jefferson

  3Rd US President

  Saturday, Apr 13, 1743
  Tuesday, Jul 04, 1826

• Kim Kardashian

  Television Personality

  Tuesday, Oct 21, 1980
  

• Johann Wolfgang Von Goethe

  Writer

  Thursday, Aug 28, 1749
  Thursday, Mar 22, 1832

• Ronald Reagan

  40Th US President

  Monday, Feb 06, 1911
  Saturday, Jun 05, 2004

• Helen Keller

  Author

  Sunday, Jun 27, 1880
  Saturday, Jun 01, 1968

• Steven Wright

  Comedian

  Tuesday, Dec 06, 1955
  

• Khalil Gibran

  Poet

  Saturday, Jan 06, 1883
  Friday, Apr 10, 1931

• Carl Sagan

  Astronomer

  Friday, Nov 09, 1934
  Friday, Dec 20, 1996

• Robert Frost

  Poet

  Thursday, Mar 26, 1874
  Tuesday, Jan 29, 1963

• George Bernard Shaw

  Playwright

  Saturday, Jul 26, 1856
  Thursday, Nov 02, 1950

• Friedrich Nietzsche

  Philologist

  Tuesday, Oct 15, 1844
  Saturday, Aug 25, 1900

• Bob Marley

  Singer

  Tuesday, Feb 06, 1945
  Monday, May 11, 1981