The Global Warming Road Part I

1. 1800: At the dawn of the industrial revolution, planet’s CO2 concentration is around 280 ppm — 38% lower than today.
2. 1896: Swedish chemist Svante Arrhenius publishes first study tying CO2 emissions to fossil fuels.
3. 1937: University of Wisconsin geographer Glenn Trewartha helps coin the term “greenhouse effect.”
4. 1938: English engineer G.S. Callendar asserts that CO2 increases are warming the planet, suggests this will make cold areas more habitable.
5. 1958: Scientists begin to track CO2 levels and soon observe increases. First official studies show level at 315 ppm.
6. 1960: Soviet Union publishes essay titled “Man Versus Climate” that advocates deliberate planet heating to unthaw Arctic and boost farm output.
7. April 22, 1970: First Earth Day. US National Oceanographic and Atmospheric Association (NOAA) created 5 months later.
8. 1975: National Academy of Science report warns of “serious worldwide cooling” in the next 100 years, sparking fears of new ice age.
9. July 1981: A young US representative from Tennessee, Albert Gore, Jr., organizes climate change hearing on Capitol Hill. Media attendance sparse.
10. 1985: Scientists at Villach conference in Austria reach consensus that global warming is happening and international treaties needed to curb emissions.
11. 1988: UN-led Intergovernmental Panel on Climate Change (IPCC) is established to assess state of knowledge on climate change.
12. June 23, 1988: NASA’s James Hansen testifies to Congress that he has “99 percent confidence” the planet is warming. New York Times headlines, “Global Warming Has Begun, Expert Tells Senate.”
13. 1989: National Association of Manufacturers along with oil and auto companies form Global Climate Coalition to fight carbon restrictions.
14. 1992: At Rio Earth Summit, US blocks calls for serious action; President George H.W. Bush declares, “The American way of life is not negotiable.”
15. December 11, 1997: First global climate treaty, Kyoto Protocol, adopted.
16. November 12, 1998: President Bill Clinton signs the Kyoto Protocol, a symbolic gesture; Senate has already rejected it 95-to-0.
17. March 2001: President George W. Bush withdraws US from Kyoto treaty.
18. 2001: Hottest year on record.
19. July 28, 2003: US Sen. James Inhofe (R-Okla.) says on Senate floor that global warming is “the greatest hoax ever perpetrated on the American people.”
20. Summer 2003: Heat wave hits Europe; 35,000 die.
21. May 30, 2004: Climate change dystopia The Day After Tomorrow released; will bring in more than $544 million.
22. December 7, 2004: Michael Crichton’s State of Fear, which features climate change as environmentalist hoax, published; Bush reported to have “avidly read” book.
23. February 16, 2005: Kyoto Protocol goes into effect for 130 countries.
24. December 8, 2006: Inhofe’s Senate committee releases 68-page “A Skeptic’s Guide to Debunking Global Warming Alarmism.”
25. 2007: IPCC releases fourth report, concluding again that global warming is caused by humans.
26. May 7, 2007: Three decades ahead of projections, scientists report record lows in Arctic summer ice.
27. February 2008: An iceberg bigger than Manhattan breaks off the Wilkins Ice Shelf in Antarctica.
28. April 2008: Hansen warns that a CO2 concentration over 350 ppm isn’t compatible with “a planet similar to that on which civilization developed and to which life on Earth is adapted.”
29. 2008: Ties 2001 as hottest year on record.
30. February 1, 2009: NOAA finds that effects of climate change will be “largely irreversible” for more than 1,000 years after emissions stop.
31. April 2009: Global CO₂ concentration reaches 387 ppm, projected to reach 866 ppm by century’s end if unchecked.
32. December 7-18, 2009: Nations to meet in Copenhagen to negotiate successor treaty to Kyoto Protocol. — Andy Kroll