------------ PS: The Global Coral Reef Alliance has documented dramatic declines in coral reefs caused by
global warming of surface waters, using satellite data of of global coral reefs and sea surface temperatures.
* The Global Coral Reef Alliance says
global warming of surface waters is already killing large amounts of coral.
Not exact matches
Most scientists and climatologists agree that weird weather is at least in part the result
of global warming — a steady increase in the average temperature
of the
surface of the Earth thought to be caused by increased concentrations
of greenhouse gasses produced by human activity.
The Atlantic Ocean
surface circulation is an important part
of the Earth's
global climate, moving
warm water from the tropics towards the poles.
The drones can't come too soon for scientists who study the El Niño — Southern Oscillation, a set
of shifting
global temperature and rainfall patterns triggered by
warm surface waters that slosh back and forth across the equatorial Pacific every few years.
First, sea -
surface temperatures in the Gulf
of Mexico have been higher than normal in the past couple
of months, due to
global warming, which means the air that flowed north would have been
warmer to start with.
He pointed out that, regardless
of the documents that
surfaced as part
of the highly politicized «climategate» controversy in December, the evidence for
global warming remains.
The results show that even though there has been a slowdown in the
warming of the
global average temperatures on the
surface of Earth, the
warming has continued strongly throughout the troposphere except for a very thin layer at around 14 - 15 km above the
surface of Earth where it has
warmed slightly less.
In June 2015, NOAA researchers led by Thomas Karl published a paper in the journal Science comparing the new and previous NOAA sea
surface temperature datasets, finding that the rate
of global warming since 2000 had been underestimated and there was no so - called «hiatus» in
warming in the first fifteen years
of the 21st century.
All but one
of the main trackers
of global surface temperature are now passing more than 1 °C
of warming relative to the second half
of the 19th century, according to an exclusive analysis done for New Scientist.
it would be more inresting when we invent something new like car runs onbiofuel instead
of oil and gas because it save lot
of sphere above the earth
surface and also help from the
global warming
Glacier seismology is a relatively new area
of science, but interest has been growing in the possibilities for detecting the extent
of global warming's impact in the vibrations it causes beneath the Earth's
surface.
Like carbon dioxide, methane is one
of the greenhouse gases, which trap heat near Earth's
surface and contribute to
global warming.
The deceleration in rising temperatures during this 15 - year period is sometimes referred to as a «pause» or «hiatus» in
global warming, and has raised questions about why the rate
of surface warming on Earth has been markedly slower than in previous decades.
Warmer than average temperatures were evident over most
of the
global land
surface, except for parts
of western Europe, northern Siberia, parts
of eastern Asia and much
of central Australia stretching north.
In the latter half
of the decade, La Niña conditions persisted in the eastern and central tropical Pacific, keeping
global surface temperatures about 0.1 degree C colder than average — a small effect compared with long - term
global warming but a substantial one over a decade.
A
warm bias in sea
surface temperature in most
global climate models is due to a misrepresentation
of the coastal separation position
of the Gulf Stream, which extends too far north
of Cape Hatteras, North Carolina.
The area boasts the world's
warmest ocean temperatures and vents massive volumes
of warm gases from the
surface high into the atmosphere, which may shape
global climate and air chemistry enough to impact billions
of people worldwide.
«Cold, deep water from this little area
of the Nordic seas, less than 1 %
of the
global ocean, travels the entire planet and returns as
warm surface water.
When it comes to slowing down
global warming, the world's oceans — 70 percent
of the planet's
surface — may be Homo sapiens» best hope for a stable future.
Much
of global warming's impacts are playing out closest to the
surface, said Joshua Willis, a scientist at NASA's Jet Propulsion Laboratory and co-author
of the study.
Over the course
of coming decades, though, trade wind speed is expected to decrease from
global warming, Thunell says, and the result will be less phytoplankton production at the
surface and less oxygen utilization at depth, causing a concomitant increase in the ocean's oxygen content.
Surface water in the region is
warming at twice the rate
of the
global average.
Gentine's team is the first to isolate the response
of vegetation from the
global warming total complex response, which includes such variables for the water cycle as evapotranspiration (the water evaporated from the
surface, both from plants and bare soil) soil moisture, and runoff.
An analysis using updated
global surface temperature data disputes the existence
of a 21st century
global warming slowdown described in studies including the latest Intergovernmental Panel on Climate Change (IPCC) assessment.
Warmer than average temperatures were evident over most
of the
global land
surfaces, except for parts
of the United States and western Europe, northern Siberia, parts
of eastern Asia and much
of central Australia stretching north.
This represents a return to the rapid rates
of global surface warming — around 0.2 °C per decade — last seen in the 1990s.
A great deal
of the confusion surrounding the issue
of temperature trends in the upper troposphere comes from the mistaken belief that the presence or lack
of amplification
of surface warming in the upper troposphere has some bearing on the attribution
of global warming to man - made causes.
The research, published last June in the journal Science, concluded that an improved record
of surface temperatures no longer shows evidence
of a slowdown in
global warming.
If this rapid
warming continues, it could mean the end
of the so - called slowdown — the period over the past decade or so when
global surface temperatures increased less rapidly than before.
June 2013 tied with 2006 as the fifth
warmest June across
global land and ocean
surfaces, at 0.64 °C (1.15 °F) above the 20th century average
of 15.5 °C (59.9 °F).
With ENSO - neutral conditions present during the first half
of 2013, the January — June
global temperature across land and ocean
surfaces tied with 2003 as the seventh
warmest such period, at 0.59 °C (1.06 °F) above the 20th century average.
The range (due to different data sets)
of global surface warming since 1979 is 0.16 °C to 0.18 °C per decade compared to 0.12 °C to 0.19 °C per decade for MSU estimates
of tropospheric temperatures.
Surface temperature is only a small fraction
of our climate with most
of global warming going into the oceans.
Global warming, the phenomenon
of increasing average air temperatures near the
surface of Earth over...
For
global observations since the late 1950s, the most recent versions
of all available data sets show that the troposphere has
warmed at a slightly greater rate than the
surface, while the stratosphere has cooled markedly since 1979.
More than 90 %
of global warming heat goes into
warming the oceans, while less than 3 % goes into increasing the atmospheric and
surface air temperature.
Even if we focus exclusively on
global surface temperatures, Cowtan & Way (2013) shows that when we account for temperatures across the entire globe (including the Arctic, which is the part
of the planet
warming fastest), the
global surface warming trend for 1997 — 2015 is approximately 0.14 °C per decade.
The oceans are heating up: Not only was Earth's temperature record
warm in 2014, but so were the
global oceans, as sea
surface temperatures and the heat
of the upper oceans also hit record highs.
«The reason for the layering is that
global warming in parts
of Antarctica is causing land - based ice to melt, adding massive amounts
of freshwater to the ocean
surface,» said ARC Centre
of Excellence for Climate System Science researcher Prof Matthew England an author
of the paper.
These so - called «modest hyperthermals» (meaning a rapid, pronounced period
of global warming) had shorter durations and recoveries (about a 40,000 year cycle) and involved an exchange
of carbon between
surface reservoirs into the atmosphere and then into sediment.
With the contribution
of such record warmth at year's end and with 10 months
of the year record
warm for their respective months, including the last 8 (January was second
warmest for January and April was third
warmest), the average
global temperature across land and ocean
surface areas for 2015 was 0.90 °C (1.62 °F) above the 20th century average
of 13.9 °C (57.0 °F), beating the previous record warmth
of 2014 by 0.16 °C (0.29 °F).
Not surprisingly, given that the
surface ocean is responsible for much
of atmospheric
warming, ocean
warming and
global surface air temperatures vary largely in phase with one another.
(1) The
warm sea
surface temperatures are not just some short - term anomaly but are part
of a long - term observed
warming trend, in which ocean temperatures off the US east coast are
warming faster than
global average temperatures.
A very recent study by Saba et al. (2015) specifically analyzed sea
surface temperatures off the US east coast in observations and a suite
of global warming runs with climate models.
Natural
global warming is self - rectifying either by slow chemical weathering processes responsible for mineral sequestration
of carbon or by gradual return
of Earth's orbital parameters to what they were before the onset
of global warming, thereby significantly reducing the amount
of solar radiation reaching the Earth's
surface.
For example, if
global warming were due to increased solar output, we would expect to see all layers
of the atmosphere
warm, and more
warming during the day when the
surface is bombarded with solar radiation than at night.
This NASA analysis highlights that the recent lull in
surface temperatures is simply the result
of natural variability superimposed upon the
global warming trend - the cool phase
of a cool /
warm oscillation.
A new analysis published in the journal Environmental Research Letters establishes that seasonal forecast sea
surface temperature (SSTs) can be used to perform probabilistic extreme - event attribution, thereby accelerating the time it takes climate scientists to understand and quantify the role
of global warming in certain classes
of extreme weather events.
Dai, A., K.E. Trenberth, and T. Qian, 2004: A
global data set
of Palmer Drought Severity Index for 1870 - 2002: Relationship with soil moisture and effects
of surface warming.