When
rainfall increased from the changing climate, flooding provided a thin layer of fresh water for Azolla to creep outward, over parts of the surrounding continents.
Rainfall increases from almost nothing in the Atacama Desert in the north to 5,080 mm (200 inches) in the south.
Not exact matches
The three studies, discussed in a separate news conference December 13, found that human influence probably
increased the hurricane's total
rainfall, by anywhere
from at least 15 percent to at least 19 percent.
The scientists warn that climate change threatens these habitats, not only
from rising temperatures
increasing peat decomposition, but also via altered
rainfall patterns — with summer droughts drastically affecting the blanket bog hydrology.
In fact,
increasing levels of CO2 in the atmosphere — now roughly 392 parts per million and rising — may be fertilizing the rainforest and preventing even greater impacts
from reduced
rainfall, although this question, Davidson and his colleagues wrote in the review, «may be one of the largest unknowns for the future of the Amazon forests.»
Warmer temperatures and
increased rainfall from the El Niño, along with a devastated infrastructure and an influx of people into larger cities, likely caused the spike in Zika cases, Sorensen said.
The researchers found that when the temperature rose, these high clouds behaved very differently
from the clouds that were spread over large areas, but they could not determine the main reason for the
increased rainfall from the measurements alone.
Work by researchers
from Taiwan and China found that the
increase in
rainfall intensity over the past three decades has been an entire order of magnitude greater...
The warmer temperatures and
increased rainfall from El Niño have previously been associated with a higher likelihood of dengue outbreaks.
With no
increase in the region's
rainfall, the change «can only come
from melting permafrost and glaciers.»
Joint research
from the Monash branch of the Australian Research Council Centre of Excellence for Climate System Science (ARCCSS) and NASA published in Nature found even though other types of
rainfall has decreased in frequency and the total number of thunderstorms remained the same, the
increase in big storms had elevated total
rainfall.
He attributes the data
from the other studies that points to glacial growth more to other influences on the calculations — such as an
increase in
rainfall.
The study's authors expected about a 6 percent
increase in
rainfall from Hurricane Harvey because of warming in the Gulf of Mexico.
They face challenges
from an
increasing population; land that's overfarmed and worn out; and climate change, bringing with it worsening drought or
increased rainfall.
So looking for both
increased rainfall in wet areas and a shift in storm tracks away
from the equator helped the researchers separate the signal of climate change
from the noise of natural variability.
«Looking at weather and dengue incidents over longer periods, we found a similar strong link between how
increased rainfall and warmer temperatures resulting
from the reoccurring el Niño phenomenon are associated with elevated risks of dengue epidemics.
The water is mostly coming
from melting permafrost and rising
rainfall, which is
increasing flows in Siberian rivers that drain into the Arctic, such as the Ob and Yenisei.
Recent monitoring does suggest a significant weakening but debate continues over whether the gulf stream may «switch off» as a result of the
increased flows of fresh water
from northern latitude
rainfall and melting of the Greenland icecap.
And that heat helps draw air upward, pulling moist air in
from nearby forested land that
increases rainfall in the immediate area.)
From removing carbon dioxide and pollutants from the air, intercepting rainfall and increasing property values, California's 173.2 million city trees provide ecosystem services valued at $ 8.3 billion a y
From removing carbon dioxide and pollutants
from the air, intercepting rainfall and increasing property values, California's 173.2 million city trees provide ecosystem services valued at $ 8.3 billion a y
from the air, intercepting
rainfall and
increasing property values, California's 173.2 million city trees provide ecosystem services valued at $ 8.3 billion a year.
For example, the levels of flavonols decreased in Red Baron onions
from 2010, the year with the lowest temperatures, but
increased in 2011 and 2014 when temperatures were higher and
rainfall was down.
Extreme
rainfall, higher temperatures, melting permafrost and
increases in wildfires all pose threats to HUD programs
from cities to Indian reservations to rural areas.
This is because not only does the higher water - holding capacity lead to
increased rainfall, but climate change makes the atmosphere more favourable to low - pressure systems bringing rain
from the Atlantic across southern England.»
Here we present the first dated terrestrial record
from southeast Arabia that provides evidence for
increased rainfall and the expansion of vegetation during both glacial and interglacial periods.
Simultaneous exposure to toxic air pollutants can worsen allergic responses.24, 156,25,157 Extreme
rainfall and rising temperatures can also foster indoor air quality problems, including the growth of indoor fungi and molds, with
increases in respiratory and asthma - related conditions.27, 28,29,30 Asthma prevalence (the percentage of people who have ever been diagnosed with asthma and still have asthma)
increased nationwide
from 7.3 % in 2001 to 8.4 % in 2010.
Co-author Dr Pascal Yiou,
from Le Laboratoire des Sciences du Climat et l'Environnement (LSCE) in Paris, said: «The
increase in extreme
rainfall was due to a rise in moisture and very likely an
increase in the frequency of deep depressions west of Scotland.
The effects of
increased temperatures and atmospheric CO2 concentration have been documented concerning shifts in flowering time and pollen initiation
from allergenic plants, elevated production of plant - based allergens, and health effects of
increased pollen concentrations and longer pollen seasons.15, 16,17,18,19,20,21,22,23,24,25,26 Additional studies have shown extreme
rainfall and higher temperatures can lead to
increased indoor air quality issues such as fungi and mold health concerns.27, 28,29,30
Co-author Dr Alison Kay
from the Centre for Ecology & Hydrology said: «Our hydrological modelling suggests that the
increased likelihood of extreme
rainfall arising
from human - made climate change gives a more modest
increase in extreme flows in the River Thames.
The team found that warming had
increased the chances of such extreme
rainfall from a storm like Desmond in the region by about 40 percent, with a full range of between 5 and 80 percent.
That a warmer world is likely to lead to
increased winter
rainfall, particularly intense periods of
rainfall, over the UK, comes
from well understood science.
The kinder, gentler model
from the Hadley Centre for Climate Prediction and Research in the United Kingdom estimated a wetter, warmer future:
Rainfall may
increase 20 percent to 25 percent, mean annual temperatures could
increase 2 degrees Fahrenheit by 2030 and 4 degrees by 2100.
Copious
rainfall from the typhoon
increased the weight of tephra accumulations and the destruction they caused.
For most purposes re public policy on climate flips, it is the demonstrated instability and the role played by freshening the North Atlantic that needs emphasis, along with the melt water
from Greenland adding to the effects of
increased rainfall in the very places where downwelling seems to be most efficiently conducted, the Larador and Greenland Seas.
The review by O'Gorman et al (3) reports that a 1C
increase in global mean temperature will result in a 2 % — 7 %
increase in the precipitation rate; the lower values are results of GCM output, and the upper values are results
from regressing estimated annual
rainfalls on annual mean temperatures.
The probability of
rainfall increases slightly as the month progresses, with the likelihood of
rainfall rising
from 43 % on September 1st up to 49 % by September 30th.
Average
rainfall drops slightly this month
from July to 260 mm and will
increase towards the end of the month to the Septem...
From June, average daily
rainfall increases to a peak in September, when the humidity is generally over 80 %.
Darwin's wet season lasts
from November until April and while it may make some tourist activities less appealing due to the humidity and
increased rainfall, the region comes alive with spectacular waterfalls and lush green rainforest.
[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?)
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.
Indeed, pervious studies have tied
increases in the C14 in tree rings, and hence reduced solar irradiance, to Holocene glacial advances in Scandinavia, expansions of the Holocene Polar Atmosphere circulation in Greenland; and abrupt cooling in the Netherlands about 2700 years ago... Well dated, high resolution measurements of O18 in stalagmite
from Oman document five periods of reduced
rainfall centered at times of strong solar minima at 6300, 7400, 8300, 9000, and 9500 years ago.»
For most purposes re public policy on climate flips, it is the demonstrated instability and the role played by freshening the North Atlantic that needs emphasis, along with the melt water
from Greenland adding to the effects of
increased rainfall in the very places where downwelling seems to be most efficiently conducted, the Larador and Greenland Seas.
* Over the last decade or two,
rainfall has been markedly below average in our temperate south - west, south and east, and this along with
increased average temperatures has caused a major decrease in runoff
from our catchments.
So: The study finds a fingerprint of anthropogenic influences on large scale
increase in precipitation extremes, with remaining uncertainties — namely that there is still a possibility that the widespread
increase in heavy precipitation could be due to an unusual event of natural variability.The intensification of extreme
rainfall is expected with warming, and there is a clear physical mechanism for it, but it is never possible to completely separate a signal of external forcing
from climate variability — the separation will always be statistical in nature.
Similar negative effects occur with worsening air pollution — higher levels of ground - level ozone smog and other pollutants that
increase with warmer temperatures have been directly linked with
increased rates of respiratory and cardiovascular disease — food production and safety — warmer temperatures and varying
rainfall patterns mess up staple crop yields and aid the migration and breeding of pests that can devastate crops — flooding — as rising sea levels make coastal areas and densely - populated river deltas more susceptible to storm surges and flooding that result
from severe weather — and wildfires, which can be ancillary to
increased heat waves and are also responsible for poor air quality (not to mention burning people's homes and crops).
This intensification has resulted in significantly greater global summer monsoon
rainfall in the Northern Hemisphere than predicted
from greenhouse - gas - induced warming alone: namely a 9.5 %
increase, compared to the anthropogenic predicted contribution of 2.6 % per degree of global warming.
If the main climate response channel is
increased convection, or greater tropical
rainfall, there could be no discernible change in air temperature at all
from increased GHGs.
Our observational studies (Gray and Schwartz, 2010 and 2011) of the variations of outward radiation (IR + albedo) energy flux to space (ISCCP data) vs. tropical and global precipitation
increase (
from NCEP reanalysis data) indicates that there is not a reduction of global net radiation (IR + Albedo) to space which is associated with
increased global or tropical - regional
rainfall.
In the Southwest, climate change would likely cause reduced
rainfall and
increased temperatures that will evaporate more water
from the soil.
While the study — «The hidden risks of climate change: An
increase in property damage
from drought and soil subsidence in Europe» — doesn't cite overall climate change as a direct cause for the
increase in soil subsidence, it describes a strong link to the condition that will «magnify these risks as factors such as rising average temperatures and more erratic
rainfall continue to alter soil conditions.»