It relied on climate data from the United Nations and various published reports of energy consumption per capita.
One way to extract climate data from ocean sediments is to examine the remains of what lived or, perhaps more pertinently, what died and was buried there.
"I've attempted to solve the problem using stratigraphy and climate data from all over the Colorado Plateau," Dr. Elston said in an interview.
It also strengthens support for an alternative technique for teasing climate data from trees in the far north, sidestepping recent methodological objections from climate skeptics.
The researchers, at the University of East Anglia in England drew that conclusion by analyzing climate data from sources like tree rings, fossil shells and ice core records at 14 locations around the world.
Against them stands reality, as a rogue employee of the National Park Service reminded us on Tuesday afternoon, defying another gag order by tweeting out climate data from the official Badlands National Park account.
Recent climate data from the lake analysis were compared with weather records from across the region, providing confidence that the lake record was a reasonable reflection of conditions elsewhere, according to the paper.
"The challenge is how to integrate this with other climate data from the Andes," he says.
We then run the model with transient monthly climate data from 1900 to 2000.
Simulations were conducted using 30 years of randomly selected climate data from 115 years historical data.
The Century 4.5 model was booted with soil and climate data from 1950 to 2012.
