The Holocene Interglacial Period Begins
(Circa 10,000 BCE)
Ecology / Conservation / Planning Timeline Outline
2,500,000 BCE – 8,000 BCE
8,000 BCE – 1,000 BCE

(Circa 2,832 BCE)
1500 – 1550
1650 – 1700
Attack on Air Pollution
(1661)
1700 – 1750
First Book Entirely Devoted to Marine Science and First Oceanographic Study of a Single Region
(1725)
1750 – 1800
Discovery of Photosynthesis
(1779)
1800 – 1850
The First Patent for Paper Recycling
(April 28, 1800)
The First Book Printed on Recycled Paper, with an Appendix Printed on Paper Made from Wood Pulp
(1801)
Animal Ecology
(1824)
Theory of the Ice Age; Global Cooling and Warming
(1834 –
1841)
Marsh's First Publication on Ecology
(September 30, 1847)
1850 – 1875
The Beginning of the American Petroleum Industry
(August 27, 1859)
Forest Ecology
(1860)
The Wallace Line
(1869)
Forest and Stream Magazine
(1873)
1875 – 1900
The First Comprehensive Global Study of Zoogeography, Including the first Global Biodiversity Map
(1876 –
December 2012)
Aquatic Ecosystem Science
(1887)
The Sierra Club
(May 28, 1892)
The Garden City Movement
(1898)
1900 – 1910
1910 – 1920
"Our Vanishing Wild Life"
(1913)
Plant Succession
(1916)
1920 – 1930
Animal Ecology
(1927)
1930 – 1940
Hundreds of Thousands of Wind Turbines Power Farms in the U.S.
(Circa 1930 –
1945)
Foundation of The Wilderness Society
(January 21, 1935)
DDT is Discovered, and Eventually Banned
(1939 –
1972)
1940 – 1950
1950 – 1960
The First Routine Real-Time Numerical Weather Forecasting
(December 1954)
1960 – 1970
"Silent Spring"
(1962)
1970 – 1980
The Endangered Species Act of 1973
(December 28, 1973)
CFCs Deplete the Ozone Layer
(1974)
1980 – 1990
Discovery of the Antarctic Ozone Hole
(May 16, 1985)
Soy Ink Introduced
(1987)
1990 – 2000
2005 – 2010
The EPA Begins to Close its Scientific Libraries
(November 20, 2006)
Demanding that the U.S. EPA Desist from Destroying its Libraries
(November 30, 2006)
The Film "Avatar" and Visions of Reality, Virtual and Otherwise
(December 10, 2009)
2010 – 2011
Paperbecause.com Makes the Case for Using Paper
(October 27, 2010)
Seventy Online Databases that "Define Our Planet"
(December 3, 2010)
2011 – 2013
Koomey’s Law of Electrical Efficiency in Computing
(March 2011)
