Never one to shirk a challenge, if raindrops hit 20mph &
average global rainfall 900 mm, Bobl is only a triffling 5000 % out!!
Not exact matches
There are more than a dozen widely used
global climate models today, and despite the fact that they are constantly being upgraded, they have already proved successful in predicting seasonal
rainfall averages and tracking temperature changes.
When in January
rainfall was double the expected
average over wide areas, many people made cautious links between such extreme weather and
global climate change.
In this study, published in the journal Royal Society Open Science, the researchers mapped the
global occurrence of mammalian species living in different social systems to determine how
averages and variation in
rainfall and temperature explain species distributions.
So if you think of going in [a] warming direction of 2 degrees C compared to a cooling direction of 5 degrees C, one can say that we might be changing the Earth, you know, like 40 percent of the kind of change that went on between the Ice Age; and now are going back in time and so a 2 - degree change, which is about 4 degrees F on a
global average, is going to be very significant in terms of change in the distribution of vegetation, change in the kind of climate zones in certain areas, wind patterns can change, so where
rainfall happens is going to shift.
Since 1990
rainfall has returned to the Sahel at levels slightly below the 1900 to 1993
average, according to
Global Historical Climatology Network data.
[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?)
Global warming is increasing global average rainfall, but recent research by the UK Hadley Centre suggests that rainfall is becoming more spatially variable on a global
Global warming is increasing
global average rainfall, but recent research by the UK Hadley Centre suggests that rainfall is becoming more spatially variable on a global
global average rainfall, but recent research by the UK Hadley Centre suggests that
rainfall is becoming more spatially variable on a
global global basis.
During that same period,
average annual
rainfall in New South Wales declined by 3.6 inches (92 millimeters).3 Scientists think the decline in autumn
rainfall in southeast Australia since the late 1950s may be partly due to increases in heat - trapping gases in Earth's atmosphere.3, 14 Major bushfires over southeast Australia are linked to the positive phase of an ocean cycle called the «Indian Ocean Dipole» — when sea surface temperatures are warmer than
average in the western Indian Ocean, likely in response to
global warming.15, 16
Though a 1 C rise in
global temperature may not tell us anything about
global climate - temperature is not really something which effect humans or life, whereas patterns
rainfall, would be more relevant than
average global temperature.
The steady increase in
global temperatures, including
average temperatures in Australia, means that even when
rainfall is at or near the historical
average, conditions are drier than before because evaporation rates are higher.
Research suggests that releasing aerosols could also help to bring back
global rainfall patterns to their pre-industrial
averages.
Overall,
global rainfall is reduced by about five percent on
average in all four models studied.
It says that there is now less confidence that
global average rainfall has increased in the past, but there is greater confidence that it will rise in the future, according to the CSE.
The scientists show that temperatures have risen faster than the
global average and
rainfall has increased over the period 1993 to 2007 at the 12 sites.
We know that increasing
global temperatures can lead to droughts, and Cape Town has been experiencing record drought for years — getting only about half of its
average annual
rainfall since 2015.
Let's put it like this — if you
average up the
global rainfall and leave out the results under cloudy skies, will anyone take you seriously?
Equivalent results for heavy
rainfall events in Southern Asia and tropical Africa suggest these would increase in line with
global average temperature rise.
Using existing output data from
global climate models, the researchers plotted projections of changes in
global average temperature and
rainfall against regional changes in daily extremes.
Moreover, rising
global average temperatures lead to longer pollen seasons in many places and — when combined with stronger
rainfall events, flooding, and higher humidity — create the perfect environment for mold to flourish.