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Why oceans are more acidic near the shore
Note that "more acidic" in this case means "hundredths if a pint less alkaline". Seawater is profoundly alkaline (pH of 8+), 7 is neutral and acids have a pH of less than 7.
If seawater goes from a pH of 8.3 to 8.25 in the spring it's true to see this is "acidification" or that it's "more acidic" seawater, even with this seasonal shift, is still profoundly alkaline.
Of course pollution is often very acid. There's a difference between water near man and water in the open ocean.
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Beijing sinking by four inches a year
Beijing is sinking due to the excessive pumping of groundwater, scientists have warned.
The city sits on extensive natural reservoirs of water that are drying out through human use, causing areas to subside.
The team behind the research, which used satellite imagery for its findings, say the city's central Chaoyang business district is among the worst-affected areas, subsiding at four inches a year.
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Study shows ARGO ocean robots uncertainty was up to 100 times larger than advertised
The Hadfield study compared the new ARGO robotic buoys to other ways of measuring ocean temperatures in a slice across the North Atlantic. The results are fairly devastating for claims that the oceans are heating by 0.005° C per year. Hadfield et al found that the Argo network made errors around 0.5° C, and up to 2° C in one area.
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Tridacna giant clam shell shows middle ages warmer than today.
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The Atlantic Is Entering A Cool Phase That Will Change The World’s Weather
The Atlantic Ocean’s surface temperature swings between warm and cold phases every few decades. Like its higher-frequency Pacific relative El Nino, this so-called “Atlantic Multidecadal Oscillation” can alter weather patterns throughout the world. The warmer spell we’ve seen since the late 1990s has generally meant warmer conditions in Ireland and Britain, more North Atlantic hurricanes, and worse droughts in the US Midwest.
However a colder phase in the Atlantic could bring drought and consequent famine to the developing countries of Africa’s Sahel region. In the UK it would offer a brief respite from the rise of global temperatures, while less rainfall would mean more frequent summer barbeques. A cold Atlantic also means fewer hurricanes hitting the southern US.
Source
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GBR Waters not warmed in 150 years
Come November and December this year (2021) it will be exactly 150 years since a scientific expedition made meticulous observations of water temperatures along the Great Barrier Reef.
On the voyage from Sydney to Cape Sidmouth in far north Queensland scientists took hourly sea surface temperatures between 6:00am and 6:00pm every day ‘of the warm current setting south along the east coast of Australia’ now known as East Australian Current. The measurements commenced out to sea from Port Stevens, north of Sydney, and continued to near the tip of Cape York. They did the same on the return trip 2-weeks later.
Headed by government astronomers from Melbourne and Sydney, the voyage was organised by the Royal Society of Victoria to observe a total eclipse of the sun predicted for the 12th December, 1871. With other scientists the party travelled aboard the steamer Governor Blackall out of Sydney on 27 November 1871.. Consequently, the measurements were not just a matter of idle curiosity by passing mariners, they were the subject of formal scientific research and followed the same protocol and used the same thermometer for every observation.
Scientist, Dr. Bill Johnston, located the 1877 paper when undertaking research in The National Library on H.C. Russell’s contribution to meteorology in Australia. The former New South Wales senior research scientist has collated the 1871 data analysed it meticulously and correlated the temperature readings with the latitude at which they were taken. This is vital because the warm East Australian Current slowly cools as it flows south from the tropics, eventually into the Tasman Sea.
The 1871 observations were used to baseline recent data derived from 27 Australian Institute of Marine science (AIMS) data loggers from Thursday Island in the north to Boult Reef in the south. Both datasets were robust, comparable and fit for the purpose of examining time-evolution of sea surface temperature. AIMS data for equivalent times and latitudes were not significantly different to data measured in November/December 1871. It is shocking that this vital piece of scientific evidence is not featured more prominently in all the Reef research of recent years.
The result of this analysis surely dismantles the assertion that sea surface temperatures in the Great Barrier Reef are rising and rising rapidly. (PDF of original data)
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Land rising not sinking in Louisiana.
New land is blossoming at the mouths of the Atchafalaya River and the Wax Lake Outlet in Louisiana, bucking the trend of lost ground in this Gulf state.
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Stuff concerning polar ice.
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Turns out the growth of Islands exceeds the rate of sea rise.
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Global sea levels are rising faster than previously thought
According to the GRACE gravitational-recovery satellites, sea level actually fell from 2003-2008; According to the ENVISAT sea-level satellite, sea level rose from 2004-2012 at a mean rate equivalent to just 1.3 inches per century; The inter-calibration errors between the series of laser-altimetry satellites from which the “official” sea-level record is obtained are greater than the sea level rise they purport to show. Tide gauges and benchmarks show very little sea level rise. And why should there be much sea-level rise? The ARGO bathythermographs show that in the first 11 years of the record, 2004-2014, the ocean to a depth of 1900 m warmed at a rate equivalent to 0.23 Cº per century.
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The most accurate readings so far show that the oceans are cooling, not warming.
A recently published estimate of Earth’s global warming trend is 0.63 ± 0.28 W/m2, as calculated from ocean heat content anomaly data spanning 1993-2008. This value is not representative of the recent (2003-2008) warming/cooling rate because of a “flattening” that occurred around 2001-2002. Using only 2003-2008 data from Argo floats, we find by four different algorithms that the recent trend ranges from –0.010 to –0.161 W/m2 with a typical error bar of ±0.2 W/m2. These results fail to support the existence of a frequently-cited large positive computed radiative imbalance.
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Florida is sinking because groundwater was pumped out.
The land is sinking far faster than the sea is rising. Here is a good article explaining the land is sinking which makes it look like the sea is rising abnormally. It isn't, of course.
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After a record melt season, an Arctic cyclone, and a fascinating fracturing event, Arctic sea ice has reached its maximum extent for the year.
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Sea ice trend over 35 years
No change.
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