Imagine that. NASA removed the human effects on Earth to discern what 'the natural world' is up to. And guess what they found?
...And while previous studies (click title to entry - thank you) linked long-term variations in length of day to long-term changes in surface air temperatures, Dickey's research found long-term changes in temperature correspond strongly to changes in length of day over the last 160 years.
"What I think is one of the best points of the paper is that to people not in our area, they've got to see how big the global warming effect is - there's no getting around it," she said. "One picture is worth a million words in that particular situation."
Dickey points to a time series graph illustrating the divergence in observed temperatures over the last century and a "corrected" plot from which man-made changes have been removed to show "natural" changes.
"When you compare the full signal with the natural changes, I think it hits you right between the eyes," Dickey said.
Scientists compared existing data from models of fluid movements within Earth's core and length-of-day observations against two sets of global surface temperature data extending back to the 19th century - from NASA's Goddard Institute and the UK's Met Office. Human-produced temperature changes based on climate models of the Earth's atmosphere and ocean were then subtracted to generate corrected temperature records.
A portion of the study shows after 1930 global surface air temperatures began to rise without corresponding changes in other variables.
And while researchers now turn their attention toward a scientific explanation of these correlations, it's clear that the Earth core's effect on climate is substantially smaller than human effects....
Hm.
I probably should do an entire presentation on what exactly human warming effects are, but, it fairly cut and dry.
Heat Sinks, called cities. Population growth. Commerce and economies. To name a few.
Energy is constant. It cannot be created and it cannot be destroyed. What consumes energy exhibits its effect of that consumption. Equation :: Earth's Warming - Human Warming Effects = Natural World Warming
