In turn, they compared that data with the results
of earlier climate models to determine which ones most closely forecast what the satellites actually saw.
Earlier attempts to quantify this planetary heat imbalance were made in Hansen (2005) and Trenberth (2009)
using earlier climate model - based estimates.
Early climate models hinted that intentional iron fertilization across the entire southern Ocean could erase 1 billion to 2 billion tons of carbon emissions each year — 10 to 25 percent of the world's annual total.
Its general behavior has been simulated with reasonable realism since the days of
the earliest climate models.
Despite the huge strides taken since
the earliest climate models, there are some climatic processes that they do not simulate as accurately as scientists would like.
The report featured
an early climate model.