Good Lord, this stuff gets dumber by the day.
Humans may be much shorter if global warming continues, according to the latest study.
A new study finds that ancient horses shrunk even smaller than their ancestors, a trend scientists say is likely the result of global warming.
Modern mammals, including humans, could be at risk of shrinking as a result of global warming, just as small prehistoric horses shrank to an even smaller size when temperatures rose 56 million years ago.
The proposal follows from a study of Sifrhippus, the first horse, 56 million years ago. Sifrhippus shrank from about 12 pounds average weight to about eight and a half pounds as the climate warmed over thousands of years, according to a report published by a team of researchers and reported in the journal Science on Thursday.
The study finds that early horses were much smaller than their modern day ancestors, which have since been bred for speed, size, and a number of additional attributes. The earliest-known horse, Sifrhippus, first appeared in North America during the Paleocene-Eocene Thermal Maximum, when increased concentrations of carbon dioxide in the atmosphere and oceans caused average global temperatures to begin to rise.
The study is the first to suggest that mammals may become smaller as global temperatures rise. In response to the increase in greenhouse gas, one-third of mammal species decreased in size, the study found. The findings raise questions as to how plants and animals respond to changes in the climate, including the changes in today’s climate. A number of scientists, including researchers at NASA, predict that the Earth’s temperature could rise upwards of 7 degrees Fahrenheit over the next couple of centuries, due to a 40 percent increase of atmospheric carbon dioxide.
Via Tim Blair.