And indeed, before the recent media flash broke out, the real discussion amongst experts was about the AR4 having underestimated, not exaggerated,
certain aspects of climate change.
From an OSU press release: CORVALLIS, Ore. — An analysis of 35 headwater basins in the United States and Canada found that the impact of warmer air temperatures on streamflow rates was less than expected in many locations, suggesting that some ecosystems may be resilient to
certain aspects of climate change.
Michael Mann, another prominent climate scientist, recently said of the unexpectedly sudden Atlantic slowdown, «This is yet another example of where observations suggest that climate model predictions may be too conservative when it comes to the pace at which
certain aspects of climate change are proceeding.»
Not exact matches
If we wait to be 100 %
certain about such
aspects of climate change, by the time we have accumulated that record over decades, it is far too late.
Its a question
of time, and I'm a little more interested in
certain other
aspects of climate change.
One big reason is that while the basics
of greenhouse theory have been clear for decades, the most consequential
aspects of human - driven
climate change remain the least
certain.
As I wrote in 2006 («Yelling Fire on a Hot Planet «-RRB- problems that get people's attention (and cause them to
change) are «soon, salient and
certain» and the dangerous
aspects of human - forced
climate disruption remain none
of those things.
The terminology that the IPCC uses — such as «virtually
certain», «very likely», «likely» etcetera and the very careful definitions that are attached to them, are an excellent way
of communicating the uncertainties around various
aspects of climate change, and are a significant improvement over the traditional way
of discussing uncertainties in the scientific literature.
The most
certain aspects of global
climate change are the radiative forcings due to the greenhouse gas increases.
This activity report presents some examples
of the IFAD - GEF partnership from around the world by using brief case studies to highlight
certain aspects of various projects, which includes over 43 national and regional projects, covering areas
of biodiversity,
climate change, international waters, land degradation and sustainable forest management.
As we shall see there are
certain aspects of atmospheric conditions necessary to produce violent tornadoes that
climate change is enhancing while there are other atmospheric conditions necessary to form tornadoes about which scientists are uncertain exactly how a warming world will affect them.
While many
aspects of the response
of the
climate system to greenhouse gas forcing appear to be linear, regime or mode transitions can not be quantified by a simple number because responses do not scale with the amplitude
of the forcing: small perturbations can induce large
changes in
certain variables
of the
climate system.
«Some specific features
of the
climate change threat combine with
certain aspects of human psychology to make the challenge
of collective national and international action an especially daunting one,» the researchers write.