«The second is that the natural and anthropogenic aerosols are not well - mixed geographically and can have a substantial effect on
regional warming rates.
«Results imply that global and
regional warming rates depend sensitively on regional ocean processes setting the [ocean heat uptake] pattern, and that equilibrium climate sensitivity can not be reliably estimated from transient observations.»
If I understood Armour's paper correctly, he claimed that all feed - backs were close to linear in response to temperature over time, but that different
regional warming rates (specifically, slow warming at high latitudes) could make the feed - backs and sensitivity appear to increase with time.
Not exact matches
- Tree death
rates in old - growth forests in the western United States have more than doubled in recent decades, probably due to
regional warming, according to a USGS report.
These characteristics lead to important differences in
regional rates of surface ocean
warming that affect the atmospheric circulation.
Three areas in particular have been subject to recent
regional rapid
warming (sensu Vaughan et al., 2003), with
rates of
warming far faster than the average noted in the IPCC.
The authors conclude that the there is a higher retreat -
rate for marine terminating glaciers in the recent
warm period; in the 1930s when there is a natural mode of variability active that caused
regional temperatures around Greenland to be anomalously
warm, there was a higher retreat
rate for land - terminating glaciers (the lower retreat
rate today is in part because they are currently smaller).
Many agricultural regions
warm at a
rate that is faster than the global mean surface temperature (including oceans) but slower than the mean land surface temperature, leading to
regional warming that exceeds 0.5 °C between the +1.5 and +2.0 °C Worlds.
Consequently, the next time a serious drought takes hold of some part of the world and the likes of Al Gore blame it on the «carbon footprints» of you and your family, ask them why just the opposite of what their hypothesis suggests actually occurred over the course of the 20th century, i.e., why, when the earth
warmed - and at a
rate and to a degree that they claim was unprecedented overthousands of years - the
rate - of - occurrence of severe
regional droughts actually declined.»
A (2) Modern
warming, glacier and sea ice recession, sea level rise, drought and hurricane intensities... are all occurring at unprecedentedly high and rapid
rates, and the effects are globally synchronous (not just
regional)... and thus dangerous consequences to the global biosphere and human civilizations loom in the near future as a consequence of anthropogenic influences.
Note that
regional proxies, such as the oxygen - isotope temperature reconstructions from the Greenland Ice Core Project that record Dansgaard - Oeschger events, often indicate faster
regional rates of climate change than the overall global average for glacial - interglacial transitions, just as today
warming is more pronounced in Arctic regions than in equatorial regions (Barnosky et al., 2003; Diffenbaugh and Field, 2013).
16 In this context we refer to global - scale
warming rates, not
regional or local.
Therefore in comparing
rates of global
warming today with past
rates of global
warming, it is essential to use global averages, rather than comparing a global average with a
regional proxy.
Japan needs to immediately and drastically increase its use of renewable energy, from the perspectives of mitigating global
warming, ensuring energy security (Japan's current energy self - sufficiency
rate is only 4 %), revitalizing
regional economies, developing renewable energy - related technologies (a field that is accelerating worldwide), and strengthening Japan's competitiveness in energy - related fields.
As the U.S. corn belt reveals, every
regional climate is different - they experience major
warming and cooling periods for different reasons, at different times, and at different
rates, regardless of the global atmospheric CO2 levels.
Some models project a faster
rate of global
warming than others, but it is not yet clear whether this involves systematic differences at the
regional scale.
This is an important issue as it could indicate whether a faster
rate of
warming could be associated with particular
regional changes.