Economists have great difficulty generating
forecasts decades into the future, much less centuries.
Not exact matches
As we mentioned briefly, that leads to a «sweet spot» for
forecasting of a couple of
decades into the
future where the initial condition uncertainty dies away, but the uncertainty in the emission scenario is not yet so large as to be dominating.
Climate change is a lagged result of cumulative emissions, so errors in
forecasts of what will happen after 2050 are of much less importance than getting projections right for the next few
decades — this is fortunate because of course we can't know what will happen many
decades into the
future.
Then again, if the models actually give reliable, accurate
forecasts of meaningful criteria a couple of
decades into the
future, they can it what ever they wish.
The White House's key energy policy document cites the EIA's oil demand
forecast, and its outlook for steady oil demand
decades into the
future, as the basis for the latest round of lease sales in the Outer Continental Shelf, which includes areas in the Atlantic Ocean offered for the first time in
decades together with new areas made available north of the Arctic Circle in the Chukchi Sea.
Even if experimental observations suggest that the models get the averages roughly right for a short - term
forecast, there is no guarantee they will get them right for atmospheric conditions several
decades into the
future.
«Although long considered implausible, there is growing promise for probabilistic climatic
forecasts one or two
decades into the
future based on quasiperiodic variations in sea surface temperatures (SSTs), salinities, and dynamic ocean topographies.
As we mentioned briefly, that leads to a «sweet spot» for
forecasting of a couple of
decades into the
future where the initial condition uncertainty dies away, but the uncertainty in the emission scenario is not yet so large as to be dominating.
The inference is that climate predictions,
decades into the
future, can not be possibly right when the weather
forecast for the next day has some uncertainty.