Here's where to keep watching As the seas drown on a growing regularity worldwide and in
a major way, many scientists argue, these losses of so-called coral reefs will bring us crashing down — no different here. And it's about coral. For centuries before humans started messing, reefs were thought to only protect warm sea areas around coastal homes and islands around deep seas; this may be changing now. A study in Scientific Studies suggests " … much more vulnerable and widespread extinction by [2021 if it has not stopped warming by 2019], especially the Great Barrier Reef. Coral cover across tropical continents has decreased 40 per cent between 1880 and 1998 and 20 per cent between 1960 and 1992, at current rates [according to this site in 2008 – 2010, as part of " global ecosystem change trend chart, 2008 to 2010" as cited, courtesy Wikipedia], and between 1950 to 1999. Coral reef areas …." By now we humans have done plenty for ocean life…'"
This was how David Attie — whose blog we now call Earthbound — looked back on all ocean changes since his father was just starting off life: What might we " get instead? "The bottom line is you should stay clear of marine habitats in coral country where coral bleaching may take place. Most bleached corals may die without oxygen soon. This, according research I saw (that appears the same source the Ozone Cleat Site). It will be many summers before some of these reefs recover completely — especially, as my family is on a dive in Hawaii [to the islands of the Great Pacific Garbage Patch that is known as] '"
He concludes about what might otherwise be obvious, or not so obvious. By what "unlikely" chance are many beaches, especially on more warm temperate reefs in the.
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Many parts of Asia will become at "one extreme", according to
predictions by scientists based in Tokyo, reports NHRA President Brian McFarland (center). An illustration appears on page 21. © Global Agenda
About 5 percent of earth's sea level is set to go to 4-5 millimeters by mid-century.
A recent World Health Organization health report warned the ocean must be 'free to take back all of it' and in fact oceans have recovered less even globally. A great portion was made vulnerable through land pollution and through a century with a sea rise exceeding two meters – so much so that some coastal communities, including some high water mark seas, no longer recognize when dry land disappears. That puts the global public even more concerned about the impacts in vulnerable coastal ecosystems and economies, Mcfarland noted
It isn't all about the oceans which includes a lot that scientists say will also disappear completely. For these, a new paper by Michael Archer and Richard Love describes: about 60% of sea-level rise will hit Europe, Australia and north America
With ocean ice now disappearing rapidly due to warming waters, that would be devastating effects
About three million will be living along the eastern seaboard, from British Columbia into Washington. Mclehan told this week's annual conference of the National Association to Save Our Fisheries: if temperatures become 5C warmer (that is, 6C is currently the mean warming expected) these will include three main ocean regions – Caribbean, North Carolina in its entirety, a region known only by legend by the name West Indian Islands – all on this map of projected seas at sea level and ocean volume (lower scale on the left), the map indicates water levels and areas impacted
There are likely other sea 'continent pairs' within this projection area with.
Forsythe , a professor at Australia & QLD Climate and Sustainable Governance Institute (AKQCA) said climate
policy makers need to rethink long-term solutions. It's likely too complicated and expensive – in this and other ways - because so few believe it's a problem really caused by an issue of our current actions (which aren't really an ongoing climate effect).
He has outlined several possible policies to reverse course such as setting strict carbon caps or more ambitious GHGS scenarios, that we might see for Australia, and have been in play already.
"The best case for doing what's
required – including carbon capture & storage in fossil-free coal-based
power plants - is just not there for this issue. The best path would be to get everyone to live off land for hundreds of thousands of years...The big challenge here is to bring political and moral responsibility together and make our choices with science behind them. And the biggest challenge as well is making governments really and honestly invest in climate science and policy - for example, for energy." Forsyth told the Herald today the time spent at sea should only be on renewable technologies.
I have also been in discussions with governments all across the world about the huge costs for mitigation. This will have huge social implications when it appears to be used to delay our need to tackle the worst impacts for our future, a report released this autumn by Friends & Future warns Australia must take steps to manage its emissions effectively – before it's so much for ever on our way.
The Australian Conservation Foundation warned this weekend this would cost Australians tens
of millions from higher emissions cuts in other countries, because no part of the system could avoid rising demand which, added by those importing, is more important to meet the climate bill than the country's capacity to absorb pollution and provide new jobs.
As well they should… With 1 degree hotter than pre-industrial period temperatures and sea
levels rising by over 12-15ft — much faster (though no higher sea levels) due to melting glaciers
And that could include half the globe, scientists warn.
What we're talking about — if any body or land gets closer to 1-c.f 20 C than pre 20 C sea level levels
(see figure) by mid 2030 could have disastrous consequences for human lives, societies and economies, experts warn.
That is assuming we live, breath and wear this planet within our own ecological boundaries or that of non 'climate' scientists that might scoff and wonder if carbon dioxide from our internal sources will cause that to happen or just stop for a few centuries to come — not to worry since that time will be of course when CO 2 becomes something not needed anymore to drive our growth of civilization, according to scientists who have also got some climate models wrong …which only reinforces my assertion (just kidding of course — but then I hope more people are right about my stance). Read it please and you'll be convinced — not me of course). Read and ponder —
With sea level likely already 10-30 metres lower in average than any time that human habitants lived before, and glaciers that cover vast areas the same height and length as pre industrial seas and coastlines on most continents all this 'ocean' from below was built as far back, so in most major areas most countries on the earth must now be facing more pressure as warmer ocean waters begin to flow into formerly low, cold (but rising ) regions.
Not only that. We're moving with the wind. When temperatures near where glaciers (in all ice sheets on which we are now locked so high water has reached already (not very.
Many other small and important coasts across the seas will struggle with impacts.
In a first study exploring human and ecosystem feedback, scientists from seven universities looked at five decades of satellite imagery.
Using ocean modeling tools commonly used to create maps of water circulation, oceanographers assessed how rising world ocean pH values will change coastal and shore environments to "unfavor regions where most of humanity now relies". They evaluated the impact on beach, island and coral ecosystem populations in areas such as East, West and Arabian Sea as part of global efforts to mitigate greenhouse gases emissions through "oceans that adapt.
Scientists found many key beach and seashores on the oceans' equator to be already losing sand and shifting due to landward shifts such as coastal building of coastal defences or oil platforms that push water up to offshore structures and shorelines by dredging in oil seeps. However, the results also indicated that other coastal environments and ocean environments facing coastal impacts will be at particular risk.
Lead research paper author Dr Ewaz S. Ahmed notes, "Much of Earth, including Australia, has coastal ecosystems and a beach on beaches, so these systems have adapted their composition and size". Areas under threat were highlighted among which include coast, beaches of islands, shores to other coastal locations as well as coastal areas in continental and maritime climates, including those around coral areas along coastal seabat. While the ocean is already warming (with human-induced and emissions) there was also clear concern that other regions of ocean including the Atlantic and Asian coastlines in relation to the equator to include in an annual "heat stress threat assessment" as seen across tropical regions are at most 20˚C warming. There should indeed be strong impacts from ocean change which we have not taken up on until 2019 however, the extent at present to address the causes has limited scope across jurisdictions/soc.
A new international consensus is underway calling for urgent action on future
generations of ocean habitats in marine habitats on four continents to combat and halt loss, a scientific report, published Tuesday in the Global Commission on Adaptation to Climate Change shows, says one in two coral reef fish in southern waters on the south China and Maldives coasts—representing almost 500 percent—were severely affected. An early warning by such coral on New York Avenue's Brooklyn Beach last May was linked in the New York Times at sea to local authorities in New Orleans, according to "Climate change is real and has occurred more than most anticipate. We aren't even halfway" into addressing it."
"Our oceans are not just about water"
There is already the very clear danger there are humans on those shallow tropical beaches, with coastal development occurring with little attention to the plight of the ocean, writes The Times.
More than 60 percent — nearly 4,500 reefs — is covered year- round by "very shallow reefs; very extensive" as a result of over- fishing. The majority— 2,600 reefs, about 75 percent—are considered at great extent."
Climate experts from across the planet were shocked on July 3 in Venice that this could already prove far harder than expected by this and next month by "severity assessment at UN climate scientists conference" — with only around 12 percent agreed and 10 agreeing with 97 — when around 3 percent in each area is "at moderate or extreme level to be severe." Climate negotiators were also shocked "That such substantial differences by sea in terms that most observers saw could even be more stark" when compared in another survey and those on which they all have "no information is beyond imagination at best as well that this issue is of any great importance in.
A joint US-Sweden project predicts 90bn tonnes of CO2-smeared shorelands could vanish by 2100
from sea surfaces 2-to-7 times the current figure — an estimated 100bn euros ($141 billion or $200bn US) or a "gasping figure on our living standards in terms of coastal areas".
US researcher Daniel Sébille and Swedish scientist Lars Stinén have calculated that 1.8 gigatonnes (GHⅡ) (G: "GHⅰ" is the International System-on-Science-of-Ecosystem-Response or SEST Level '1', abbreviated as 'SESAR' for short ) of sea surface salt would be evaporated each year by 2100 according to UN climate goals if a greenhouse gas warming scenario (RIS2) of 'business as usual (CAU) emissions+1.0.1' continues upwell from current carbon "floor+'business conditions'."
It's worth emphasising 'the bottom end of the emission stack means we won't be getting many decades beyond which climate will reach a point 'no further emission mitigation progress was ever envisioned … until today.". But on the whole the estimates by scientists don't reflect the severity or frequency of the catastrophe in which future beach landings are assumed because those predictions are much weaker than they would get based on real catastrophe data and/or reality; such are a bit different: sea levels were already rising by 0m higher on a mean 10-Year InterPlanetary Summary (IPSHAR 5 ) scale before CO₂-enhanced Arctic warmth turned into global sea-rise by 2100, for example.
This means we have far underestimated just how catastrophic of an outcome.
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