Scroll the page to the right to move forward in time.
Mouse over the second and third most recent events (far right) to read their descriptions (or see below).
SCALE: 1 pixel = 10,000 years.
|Earth Climate History Timeline|
|410 mya||400 mya||390 mya||380 mya||370 mya||360 mya||350 mya||340 mya||330 mya||320 mya||310 mya||300 mya||290 mya||280 mya||270 mya||260 mya||250 mya||240 mya||230 mya||220 mya||210 mya||200 mya||190 mya||180 mya||170 mya||160 mya||150 mya||140 mya||130 mya||120 mya||110 mya||100 mya||90 mya||80 mya||70 mya||60 mya||50 mya||40 mya||30 mya||20 mya||10 mya||<< PRESENT|
|About 410 million years ago (410 mya): The first vascular plants appeared.|
|About 370 million years ago: The first trees appeared.|
|360–300 million years ago: Coal was formed during the Carboniferous Period.||Coal formation ended.|
|"The current rate of ocean acidification has no precedent in 300 million years of Earth history." (SOURCE)|
|230–65 million years ago: The Age of Dinosaurs||65 million years ago: Dinosaur extinction.|
|About 65 million years ago: First placental mammals appeared. (SOURCE)|
|At least 35 million years ago: The last time Earth's global average temperature was as warm as it is expected to be by 2100. (SOURCE)|
|15 million years ago: Last time carbon dioxide (CO2) levels were this high. (SOURCE)|
3.7 million years ago: Australopithecus walked upright.
At least 1.9 million years ago: human ancestors were using fire for cooking food.
Atmospheric methane (CH4) hasn't been this high for at least the past 420,000 years
(before which we have no ice-core data; indirect evidence
suggests that atmospheric methane actually hasn't been as high
as it is now in at least 55 million years).
(SOURCE 1 & SOURCE 2)
195 thousand years ago: Homo sapiens arrived.
SPECIAL THANKS to Steve Rose, whose Evolution Timeline and Hominid Timeline inspired this timeline,
and to Joseph W. Bess, who did most of the work to make the HTML file work properly.
Any errors are purely my own. – David W. Fischer
(c) Copyright 2013 GlobalEcologist.org