There's plenty of year-to-year, and even decade-to-decade variability to complicate things, as both modeling and observations have shown.
Fuel treatment effectiveness in Southern forests has been demonstrated using fire behavior modeling and observations of reduced wildfire area and tree damage.
For instance, so far only process noise is modeled and observation noise is ignored entirely.
There's a continuously evolving and developing understanding of space, in which both models and observations play important roles".
Results are robust to current uncertainties in models and observations … Our results provide clear evidence for a discernible human influence on the thermal structure of the atmosphere".
The models and observations all agree, for example, that the last decade was the warmest on record.
Better computer models and observations are likely to refine the menu of impacts, but reducing uncertainty still "doesn't necessarily provide what is needed by decision makers," said Dr. Roger A. Pielke Jr., an expert on environmental risk at the University of Colorado.
As a U.S. Climate Change Science Program report co-authored by John Christy concluded, "This difference between models and observations may arise from errors that are common to all models, from errors in the observational data sets, or from a combination of these factors.
There are other striking mismatches between models and observations.
