While the window for global decisive action is rapidly closing, climate scientists should not make careless promises about their ability to reduce uncertainties in climate scenarios over the next few years, and thereby provide our governments with excuses to shun their responsabilities until they know more detail about how fast and adverse
their regional impacts of global warming will be (compared to those in other countries).
KATHARINE HAYHOE is an atmospheric scientist at Texas Tech University, where she studies climate modeling and
the regional impacts of global warming.
Leaders of Asian industries wake up to
regional impact of global warming The Financial Times, Nov. 19, 2004
Not exact matches
A reduction
of regional stress such as nutrient runoff or the loss
of oxygen can mitigate the
impact of global stressors like ocean acidification and
warming.
Current and likely future
impacts of global warming on ecosystems and human activities are also considered, including biodiversity, system buffering and resilience, and
regional inequality and vulnerability.
The climate scientists behind the report are less ready, however, to predict what the specific
impacts of global warming will look like in the coming decades, meaning it won't be very useful for
regional planners.
-- Not later than 18 months after the date
of enactment
of this section, the Administrator, taking into consideration the public health and environmental
impacts of black carbon emissions, including the effects on
global and
regional warming, the Arctic, and other snow and ice - covered surfaces, shall propose regulations under the existing authorities
of this Act to reduce emissions
of black carbon or propose a finding that existing regulations promulgated pursuant to this Act adequately regulate black carbon emissions.
In no way can my summary
of the research regarding the
impact of regional climate change on the Viking civilization and Europe during the Little Ice Age be used to «prove» the current
global warming is due to a natural cycle.»
«The reality
of urban
warming on local and small
regional scales is not questioed by this work; it is the
impact of urban
warming on estimates
of global and large
regional trends that is shown to be small.»
Blue - Action will through its concerted efforts therefore contribute to the improvement
of climate models to represent Arctic
warming realistically and address its
impact on
regional and
global atmospheric and oceanic circulation.
Note that I am not saying that
warming has not taken place just that it is not
global — BEST admits that 30 %
of the stations have cooled and that is true
of severla
of therse long term stations — but that we should concentrate on finding a useful set
of temperature trends in
regional and zonal areas that reflect the
impacts of climate change, as for example the Sahel, and understand the true reasons without assuming carbon dioxide to be the culprit.
My favorite quote from that paper is: «Because ENSO is the dominant mode
of climate variability at interannual time scales, the lack
of consistency in the model predictions
of the response
of ENSO to
global warming currently limits our confidence in using these predictions to address adaptive societal concerns, such as
regional impacts or extremes (Joseph and Nigam 2006; Power et al. 2006).»
An alternative approach uses simple climate model projections
of global warming under stabilisation to scale AOGCM patterns
of climate change assuming unmitigated emissions, and then uses the resulting scenarios to assess
regional impacts (e.g., Bakkenes et al., 2006).