Not exact matches
Growing scarcity In addition to a growing scarcity of natural resources such
as land, water and biodiversity «
global agriculture will have to cope with the effects of climate change, notably higher temperatures, greater
rainfall variability and more frequent extreme weather events such
as floods and droughts,» Diouf warned.
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.
As global temperatures have risen over the past 20 years, satellite data reveals that global rainfall has also increased — and the trend may continue as the climate chang
As global temperatures have risen over the past 20 years, satellite data reveals that
global rainfall has also increased — and the trend may continue
as the climate chang
as the climate changes
Overeem's technique «has the potential to give good quantitative
rainfall estimates for real - time hazards forecasting,
as well
as regional and
global climate model analysis in regions of the world where the impact could be great,» Baeck says.
They also found that streams of electrons and protons known
as the solar wind, affecting Earth's
global electric field, lead to changes in aerosol formation, which ultimately impact
rainfall.
However,
as the other indicators of 2016 prove, there are many more measures of the climate than
global temperatures: from local extremes of temperature and
rainfall to an unexpected drop in Antarctic sea ice.»
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.
But the
global - mean
rainfall is thermodynamically constrained to increase more slowly, so we expect a general tendency to increased drought
as well.
The AMO is linked with decadal climate fluctuations, such
as Indian and Sahel
rainfall, European summer precipitation, Atlantic hurricanes and variations in
global temperatures.
Although many parts of west Africa are experiencing increased
rainfall as a result of
global warming, in northern Ghana, which is mostly arid savanna, it's diminishing or becoming unpredictable.
Instead of a single
global climate emergency, a state of emergency just goes on
as floods, fires, extreme storms, intense
rainfall are pushed higher and higher by climate heating.
Increasing atmospheric concentrations of carbon dioxide do not only cause
global warming, but probably also trigger increased occurrences of extreme weather events such
as long - lasting droughts, heat - waves, heavy
rainfall events or extreme storms.
[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts
as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice
as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the
global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme
rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)
My studies in 70s & 80s using
rainfall data series over different parts of the globe matches the drought conditions over different parts — which was attributed to
global warming by WMO and sent my response to Secretary General of WMO
as those of my publications are with WMO library [book was reviewed by the Vice-President of Agrometeorology group in WMO].
The increase in
rainfall intensity (shift in distribution of rain from more light events to fewer heavy events)
as a consequence of
global warming is a robust feature of GCMs.
In summer and autumn the CSIRO projections were for smaller decreases in
rainfall than in winter and spring, but the observed change was a substantial decrease: in fact,
as large a decrease between the successive 11 - year periods
as CSIRO projected on the high
global warming scenario over the 40 - year period from 1990 to 2030.
«The major cause of the substantial reduction in
rainfall for Sydney is air pollution coming from
as far away
as Melbourne's Latrobe Valley power stations,» said Mr Gingis, adding that
global warming was not to blame.
The mechanism by which the effect of oceanic variability over time is transferred to the atmosphere involves evaporation, conduction, convection, clouds and
rainfall the significance of which has to date been almost entirely ignored due to the absence of the necessary data especially
as regards the effect of cloudiness changes on
global albedo and thus the amount of solar energy able to enter the oceans.
Even Australia's 1970s «pluvial» was itself a curious coincidence of
global warming beginning to strengthen the monsoon before it could (
as it has done since 1997) virtually eliminate the southern winter
rainfall systems.
-- Susan Solomon, Nature The Long Thaw is written for anyone who wishes to know what cutting - edge science tells us about the modern issue of
global warming and its effects on the pathways of atmospheric chemistry,
as well
as global and regional temperatures,
rainfall, sea level, Arctic sea - ice coverage, melting of the continental ice sheets, cyclonic storm frequency and intensity and ocean acidification.
Posted in Advocacy, Capacity Development, Climatic Changes in Himalayas, Development and Climate Change, Disasters and Climate Change, Ecosystem Functions, Environment,
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As Climate Change Threatens, Water Cooperation Becomes Vital
After several years of demonstrating the utility of AMSU - B for monitoring
global rainfall [Ferraro et al., 2005], many studies also showed the potential for monitoring falling snow
as well [e.g., Kongoli et al., 2003; Skofronick - Jackson et al., 2004].
... incomplete and misleading because it 1) omits any mention of several of the most important aspects of the potential relationships between hurricanes and
global warming, including
rainfall, sea level, and storm surge; 2) leaves the impression that there is no significant connection between recent climate change caused by human activities and hurricane characteristics and impacts; and 3) does not take full account of the significance of recently identified trends and variations in tropical storms in causing impacts
as compared to increasing societal vulnerability.
This should not be construed
as implying that «
global warming due to anthropogenic GHG emissions» is the cause of such changes in
rainfall or temperature in South America.
«The CCR - II report correctly explains that most of the reports on
global warming and its impacts on sea - level rise, ice melts, glacial retreats, impact on crop production, extreme weather events,
rainfall changes, etc. have not properly considered factors such
as physical impacts of human activities, natural variability in climate, lopsided models used in the prediction of production estimates, etc..
I was amazed at the Government and Green responses to the serious flooding in the English Midlands a couple of years ago, when increassed
rainfall due to alleged Man - made
Global Warming was trumpeted
as a cause for the flooding; anyone who pointed out that generations of covering flood plains with buildings, concrete and ashphalt was quite a dangerous thing to do was derided
as a simpleton or an ignoramus.
Answers for the human species often involve the
global warming problem,
as the water evaporates, but this can create more
rainfall in a few areas.
Scaling the results from both theory
as well
as climate model projections suggest, then, that roughly 3 % of hurricane
rainfall today can be reasonably attributed to manmade
global warming.
One is that,
as regional climates change in response to ever - increasing combustion of fossil fuels, which then intensify the greenhouse gas ratios in the
global atmosphere, cities in now - arid regions will suffer ever more severe heatwaves, even though their rural hinterlands may enjoy higher
rainfall.
The good news is that their simulations showed that if both methods are deployed in concert, it would decrease warming to pre-industrial levels,
as desired, and on a
global level
rainfall would also stay at pre-industrial levels.
If emissions were to continue unabated and
global temperature increases exceed 4 °C, increased
rainfall would further enhance the risk of floods by raising river levels, which, combined with sea level rise, could impact
as many
as 12 million people in Bangladesh, especially if a storm surge from a tropical cyclone compounded these effects.
Rainfall is expected to become more intense
as global temperatures continue to rise, but how the duration...
On undesirability, Hulme explains that although the approach would reduce
global temperatures, it would also have significant side - effects, such
as changing local
rainfall patterns.
And these results,
as they continue, «suggest that an increased temperature will result n a shortening of the life span of mosquitoes (due to decreasing humidity) and decrease in the capacity of larva production and maturation (due to decreasing
rainfall),» so that ultimately «the increase in temperature will not result in an increased malaria transmission in Burundi,»...» [Hermenegilde Nkurunziza and Juergen Pilz 2011: International Journal of
Global Warming]
A team of scientists in Germany says record - breaking heavy
rainfall has been increasing strikingly in the last 30 years
as global temperatures increase.
The
global warming question is also important to Kenya where low
rainfall areas have been subject to terrible droughts, just
as in many other countries.