Not exact matches
The
changes to our planet as a result of global warming
are apparent for all to
see: the receding glaciers in temperate climates, the reduction in
rainfall and advancing deserts in Africa and the lakes in the Mideast and Asia that
are virtually disappearing.
Since these set of ocean currents
are known to influence global climate, the researchers
were interested to
see if it correlated with
rainfall in the Western Hemisphere, and how such a correlation could
change over time.
The indications of climate
change are all around us today but now researchers have revealed for the first time when and where the first clear signs of global warming appeared in the temperature record and where those signals
are likely to
be clearly
seen in extreme
rainfall events in the near future.
The IPCC chapter on long - term climate
change projections that Wehner
was a lead author on concluded that a warming world will cause some areas to
be drier and others to
see more
rainfall, snow, and storms.
«We
're going to
see enormous
changes in the distribution of plants and animals, agricultural patterns, and patterns of
rainfall.»
Lead author Dr Nathalie Schaller of Oxford University's Department of Physics said: «We found that extreme
rainfall, as
seen in January 2014,
is more likely to occur in a
changing climate.
A group of researchers from Germany has taken to investigating the potential
changes in extreme
rainfall patterns across the UK as a result of future global warming and has found that in some regions, the time of year when we
see the heaviest
rainfall is set to shift.
«The first
is that it
's my contention that we WILL
see agricultural failures over that time span due to
changing rainfall patterns.»
Although there
is still some disagreement in the preliminary results (eg the description of polar ice caps), a lot of things appear to
be quite robust as the climate models for instance indicate consistent patterns of surface warming and
rainfall trends: the models tend to agree on a stronger warming in the Arctic and stronger precipitation
changes in the Topics (
see crude examples for the SRES A1b scenarios given in Figures 1 & 2; Note, the degrees of freedom varies with latitude, so that the uncertainty of these estimates
are greater near the poles).
Fires in the West, droughts in the Southwest, melting snowpack in the Northwest, flooding and heavy
rainfall in the Northeast, the much stronger coastal storms and hurricanes that we've
seen in the Gulf: we've gotten to the point where we can all point to something that
's happening and say: «This
is what climate
change is doing to our region.»
A new study released Friday in the journal Science Advances helps clear up a bit of the mystery, by showing that man - made climate
change is responsible for most of the
change seen in ocean surface temperatures near the equator across Asia, which in turn affect regional
rainfall patterns including the Indian monsoon.
The IPCC chapter on long - term climate
change projections that Wehner
was a lead author on concluded that a warming world will cause some areas to
be drier and others to
see more
rainfall, snow, and storms.
Consistent with reanalysis data (Fig. 4) and theoretical considerations (36, 39), continental
rainfall is assumed to
be proportional to the mean specific humidity within the atmospheric column The effect of an offset between these quantities does not
change the model behavior qualitatively (
see SI Appendix).
«They
are doubling CO2, letting that
change the temperature,
rainfall, etc. and
seeing what that does to the AMOC in their model.
For example, let's say that evidence convinced me (in a way that I wasn't convinced previously) that all recent
changes in land surface temperatures and sea surface temperatures and atmospheric temperatures and deep sea temperatures and sea ice extent and sea ice volume and sea ice density and moisture content in the air and cloud coverage and
rainfall and measures of extreme weather
were all directly tied to internal natural variability, and that I can now
see that as the result of a statistical modeling of the trends as associated with natural phenomena.
The physical effects
are seen in
changes of
rainfall, cloudiness, wind - strength and temperature, which
are customarily lumped together in the misleading phrase «global warming».
I've never
been to a COP before, but I certainly have felt and experienced the effects of climate
change: in the drought that people face in my home country Kenya as a result of the disruption in
rainfall patterns, and in the flooding that has
seen lives lost, crops destroyed and cattle dying.
=============================================== Instead of cutting and pasting slabs of words go to the BOM page Climate
change > time series and you will
see with your very own eyes there
is only one region with a declining
rainfall namely the South West....
The rapid and large
changes in atmospheric temperature,
rainfall and biology can best
be seen in monthly data.
A pronounced shift can
be seen in extreme
rainfall events, heat waves and wind storms and the underlying reason
is climate
change, says Muir - Wood, driven by rising greenhouse gas emissions.
Indicators based on daily precipitation data show more mixed patterns of
change but significant increases have
been seen in the extreme amount derived from wet spells and number of heavy
rainfall events.
«In a 2 °C rise world, the region would
see changes in
rainfall patterns: some areas would
be getting much more rain than they
are getting today and others would
be experiencing droughts.
We
're also
seeing similarly dramatic
changes in other aspects of climate and related effects on ecosystems, including the distribution of
rainfall, storm activity, extinction of plant and animal species, and seasonal
change.
That
's an increase from 17.8 % today, in an area likely to
see decreasing
rainfall in the coming years do to the effects of climate
change on precipitation patterns.