Will predicted sea rise inundation and flooding affect property values in Coffs Harbour NSW?

Coffs Harbour 7m rise. Click to enlarge.

As many homes in Coffs Harbour  are flooded because of an intense rain depression we need also to examine the affect of sea rise. 

 

We also must stop building in flood affected areas. Councils must stop approving development in flood affected areas. It is ridiculous to see new buildings flooded to their roofs. Insurance companies may pay for a while but not without future higher payment rates. In the end every taxpayer pays.

 

• We are looking more and more unlikely to prevent severe global heating.

• Scientists are predicting the melting of the ice covering Greenland with a subsequent sea level rise of 7m.

• This rise does not factor in sea rise from the melting of Antarctica and other ice.

• Already many properties are likely to flood when a high tide is combined with high local rainfall. What were a hundred year rainfall events are now ten year events.

• The frequency of high rainfall events will increase with global heating and more and more severe hurricanes are predicted because of warmer seas.

• Low coastal areas will be subjected to severe storm surges.

• Would you buy a property likely to be inundated in twenty years, fifty years, a hundred years? Many wouldn't. Even the perception of possible inundation will greatly affect property values.

• When certain properties are in less demand their value falls.

• Would you buy a property with a value likely to fall?

•  The view of Coffs Harbour above shows areas likely to be inundated by a 7m sea level rise.

• Property above a 10m rise will become highly sought after and will greatly rise in value.

Learn more about how sea rise inundation will affect Australian property.

Click here to go to Coastal Risk Australia site

'Retreat' Is Not An Option As A California Beach Town Plans For Rising Seas: NPR 


#inundation  #sea rise  #searise  #climatecrisis  #climatechange  #ice  #melting ice 

How climate change feeds off itself and gets even worse: Axios

(Pics by this blog)

We want climate action now.

Climate change is like a snowball effect, except, well, hot. 

Why it matters: Like a snowball begins small and grows larger by building upon itself, numerous feedback loops embedded in our atmosphere and society are exacerbating climate change.

Driving the news: Scientists are well acquainted with feedback loops, but the often wonky topic doesn’t break through into the mainstream despite its importance to how much the world warms and how much we respond to that warming.

• As we soak up the last of these hot summer days, and extreme weather hits parts of the country, today seems a fitting time to break this down for those of us without a Ph.D.

Here are seven feedback loops in science and beyond.

Air conditioning

How it works: Climate change is making our summers hotter, so we use more air conditioners, which emit greenhouse gases, which heats up our planet more, so we use even more AC, which heats up our planet even more ... You get the cycle.

* This is an easy-to-understand feedback loop, but it’s not going to

Heatwaves will kill.

have a big impact on our emissions, says Zeke Hausfather, a climate scientist at the research group Breakthrough Institute. 

* The bigger impact is likely to be population growth in developing countries in hot parts of the world, like India, getting AC to survive their ever-hotter weather.

Water evaporation

This one’s more technical but far more consequential for Earth’s temperature than the AC example.

How it works: The atmosphere heats up as we emit heat-trapping greenhouse gases.

* This warmer air leads to more water evaporation from water 
 “Those decomposition processes emit greenhouse gases,” Duffy said.

* Scientists estimate that there's twice as much carbon locked up in permafrost as is already in the atmosphere, Duffy says. "The potential to amplify warming is huge.”

Melting Land Icesheets

Albedo feedback

This is similar to permafrost. It’s why you feel hotter in black clothes compared to white clothes.
How it works: Lighter surfaces reflect heat more, so as ice and other cold places get warmer (i.e., the Arctic and other permafrost), their ability to reflect heat diminishes and they soak up more heat.

• “As the world warms, expect a lot of ice and snow to melt, which uncovers darker surfaces, which will result in more warming,” said Hausfather.

Between the lines: This phenomenon, combined with the permafrost one, helps explain why the planet's poles warm faster than the rest of the world.

Wildfires

How it works: Trees, by definition, embody carbon. So when

Californian Wildfires

wildfires burn them down, carbon dioxide is emitted. 

* As the world warms, temperatures get hotter and places get drier, creating tinderboxes for when wildfires do start.
* The hotter the world gets, the bigger wildfires will be (in some places like California), the more CO2 emitted into the atmosphere, which heats up the world more, which will exacerbate wildfires more ...

Policy and economic paralysis

Unlike most policy challenges, climate change gets worse the longer we take to address it.

How it works: The longer we wait to address climate change with major government action, the bigger the policy needed and the bigger economic impact that policy will have.

• But the bigger the policy and economic hit get, the harder the politics get.
• So we wait longer still, making the required policy and economic impact ever bigger, which makes the politics even more difficult.

Yes, but: Plausible future scenarios also exist where the impacts of a warming world grow so intense and/or clean-energy technologies become so cheap that eventually these aforementioned feedback loops are broken.

Geopolitics

Carbon tariffs require geopolitical agreements.

How it works: It takes global cooperation to address climate change, given its global nature. But climate change impacts different countries differently, so they're more likely to act on their own, and in their own self-interest.

• But if there's no global cooperation, climate change continues to get worse — prolonging the adverse impacts on different countries, and giving them even less incentive to cooperate with other countries and more incentive to act on their own.

The bottom line:

“The possible scenario that is a real nightmare is if we don’t control human emissions, nature takes over and we lose control of the warming, because of these emissions from natural systems.”

— Philip Duffy, climate scientist

By Amy Harder, author of Generate  

Go to Axios

Related: East Antarctic Melting Hotspot Identified by Japanese Expedition – Ice Melting at Surprisingly Fast Rate: SciTechDaily

airconditioning, carbon tariffs, feedback loops, tipping points, permafrost, polar ice melt, #jailclimatecriminals, 

What’s Another Way to Say ‘We’re F-cked’? : Medium

One of the leading climate scientists of our time is warning of the horrifying possibility of 15-to-20 feet of sea-level rise

 

Richard Alley is not a fringe character in the world of climate change. In fact, he is widely viewed as one of the greatest climate scientists of our time. If there is anyone who understands the full complexity of the risks we face from climate change, it’s Alley. And far from being alarmist, Alley is known for his careful, rigorous science. He has spent most of his adult life deconstructing past Earth climates from the information in ice cores and rocks and ocean sediments. And what he has learned about the past, he has used to better understand the future.

For a scientist of Alley’s stature to say that he can’t rule out 15 or 20 feet of sea-level rise in the coming decades is mind-blowing. And it is one of the clearest statements I’ve ever heard of just how much trouble we are in on our rapidly warming planet (and I’ve heard a lot — I wrote a book about sea-level rise)."

Read the Medium article

 Related:

Showing sea level 5m rise flooding in Melbourne city

Showing sea level 5m rise flooding in Melbourne city

Melbourne inundation with a 5m sea level rise

• We are looking more and more unlikely to prevent global heating.

• Scientists are predicting the melting of the ice covering Greenland with a subsequent sea level rise of 7m.

• This rise does not factor in sea rise from the melting of Antarctica and other ice.

• Already many properties are likely to flood when a high tide is combined with high local rainfall. What were a hundred year rainfall events are now ten year events.

• The frequency of high rainfall events will increase with global heating and more and more severe hurricanes are predicted because of warmer seas.

• Low coastal areas will be subjected to severe storm surges. 

• Once the ice on Greenland and Antarctica melts the sea level will rise. It is already melting.

• Would you buy a property likely to be inundated in twenty years, fifty years, a hundred years? Many wouldn't. Even the perception of possible inundation will greatly affect property values.

• When certain properties are in less demand their value falls.

• Would you buy a property with a value likely to fall?

•  The view of Melbourne above shows areas likely to be inundated by a 5m sea level rise.

• Property above a 10m rise will become highly sought after and will greatly rise in value.

Learn more about how sea rise inundation will affect Australian property.

Click here to go to Coastal Risk Australia site

'Retreat' Is Not An Option As A California Beach Town Plans For Rising Seas: NPR 


#inundation  #sea rise  #searise  #climatecrisis  #climatechange  #ice  #melting ice

As temperatures soar, a ‘heat dome’ is coming to the Arctic: You Tube

After Europe experienced record-breaking temperatures this month, climate scientists are now concerned that a heat wave will settle farther north. This week, a so-called “heat dome” is expected to strike over the Arctic, causing worries about potential ice melt and rising sea levels. Washington Post reporter Andrew Freedman joins Hari Sreenivasan to discuss the causes and consequences.

PBS News July 28, 2019


 Related: 'People are dying': how the climate crisis has sparked an exodus to the US : The Guardian

Sea levels may rise much faster than previously predicted, swamping coastal cities such as Shanghai, study finds: CNN

Sea level rise 1900-2017

Global sea levels could rise more than two meters (6.6 feet) by the end of this century if emissions continue unchecked, swamping major cities such as New York and Shanghai and displacing up to 187 million people, a new study warns.

The study, which was released Monday, says sea levels may rise much faster than previously estimated due to the accelerating melting of ice sheets in both Greenland and Antarctica.

Melting ice: CNN

The international researchers predict that in the worst case scenario under which global temperatures increase by 5 degrees Celsius (9 degrees Fahrenheit) by 2100, sea levels could rise by more than two meters (6.6 feet) in the same period -- double the upper limit outlined by the UN climate science panel's last major report. 

Such a situation would be "catastrophic," the authors of the study warn. 

"It really is pretty grim," lead author Jonathan Bamber, a Professor of Physical Geography at the University of Bristol told CNN. "Two meters is not a good scenario."

He said the mass displacement of people in low-lying coastal areas would likely result in serious social upheaval. It would also pose an "existential threat" to small island nations in the Pacific which would be left pretty much uninhabitable. 

Read the original story 

Related: 

The heat is on over the climate crisis. Only radical measures will work : The Guardian

Will the world end because of climate change?

Alaska's in The Middle of a Record-Breaking Spring Melt, And It's Killing People: WP

From Science Alert

Bryan Thomas doesn't want any more "wishy-washy conversations about climate change." For four years, he has served as station chief of the Barrow Atmospheric Baseline Observatory, America's northernmost scientific outpost in its fastest-warming state.

Each morning, after digging through snow to his office's front door, Thomas checks the preliminary number on the observatory's carbon dioxide monitor. On a recent Thursday it was almost 420 parts per million - nearly twice as high as the global preindustrial average.

It's just one number, he said. But there's no question in his mind about what it means.

Alaska is in the midst of one of the warmest springs the state has ever experienced - a transformation that has disrupted livelihoods and cost lives.

SARAH KAPLAN, THE WASHINGTON POST

22 APR 2019

Read the complete WP article

Bering Sea Appears Largely Ice-Free from NOAA-20

Bering Sea

 
"On April 1, 2014, Suomi-NPP captured the image on the left, which shows much of the Bering and Chukchi seas covered in ice. The Arctic sea ice extent for 2014 was fairly typical, reaching its maximum on March 21, according to the National Snow and Ice Data Center. In contrast, the NOAA-20 image on the right shows a largely ice-free area from the coast of the Yukon Delta National Wildlife Refuge to the Bering Strait."

Read the complete original NOAA article

How affected will Macksville NSW be by a 7m sea rise? Quite affected.

Macksville 7m sea rise - Click to enlarge

• We are looking more and more unlikely to prevent global heating.

• Scientists are predicting the melting of the ice covering Greenland  with a subsequent sea level rise of 7m.

• This rise does not factor in sea rise from the melting of Antarctica and other ice.

• Already many properties and infrastructures are likely to flood when a high tide is combined with high local rainfall. What were a hundred year rainfall events are now ten year events.

• The frequency of high rainfall events will increase with global heating and more and more severe hurricanes are predicted because of warmer seas.

• Low coastal areas will also be subjected to severe storm surges.

• Would you buy a property likely to be inundated in twenty years, fifty years, a hundred years? Many wouldn't. Even the perception of possible inundation will greatly affect property values. Insurers are already reluctant to insure many properties that were once only likely to flood every 100 years.

• When certain properties are in less demand their value falls.

• Would you buy a property with a value likely to fall?

•  The view of Macksville above shows areas likely to be inundated by even a 7m sea level rise. Note the flooding of infrastructure and roads. Water supply will be affected. How could levees hold back such an onslaught?

• Property above a 10m rise will become highly sought after and will greatly rise in value. Property able to be accessed by road will increase in value but properties isolated by sea rise will lose value. New, costly road routes above the Nambucca River floodplain will be required. Will NSW be able to afford to update all its infrastructure?

Isaac Cordal sculpture depicting politicians discussing global warming

Learn more about how sea rise inundation will affect Australian property.

Click here to go to Coastal Risk Australia site

Related: 'Retreat' Is Not An Option As A California Beach Town Plans For Rising Seas: NPR 


#inundation  #sea rise  #searise  #climatecrisis  #climatechange  #ice  #melting ice  #insurancerisk  #floods  #climate catastrophe  #Macksville

Urunga NSW: Very affected by sea level rise.

Unundation of Urunga NSW with 7m sea rise. Click to enlarge.

• We are looking more and more unlikely to prevent global heating.

• Scientists are predicting the melting of the ice covering Greenland  with a subsequent sea level rise of 7m.

• This rise does not factor in sea rise from the melting of Antarctica and other ice.

• Already many properties and infrastructures are likely to flood when a high tide is combined with high local rainfall. What were a hundred year rainfall events are now ten year events.

• The frequency of high rainfall events will increase with global heating and more and more severe hurricanes are predicted because of warmer seas.

• Low coastal areas will also be subjected to severe storm surges.

• Would you buy a property likely to be inundated in twenty years, fifty years, a hundred years? Many wouldn't. Even the perception of possible inundation will greatly affect property values. Insurers are already reluctant to insure many properties that were once only likely to flood every 100 years.

• When certain properties are in less demand their value falls.

• Would you buy a property with a value likely to fall?

•  The view of Urunga above shows areas likely to be inundated by even a 7m sea level rise. Note the flooding of infrastructure and roads. Newry Island has disappeared.

• Property above a 10m rise will become highly sought after and will greatly rise in value. Property able to be accessed by road will increase in value but properties isolated by sea rise will lose value. New, costly road routes above the Bellinger/Kalang Rivers floodplain will be required. Will NSW be able to afford to update all its infrastructure? Water supply will be affected.

Isaac Cordal sculpture depicting politicians discussing global warming

Learn more about how sea rise inundation will affect Australian property.

Click here to go to Coastal Risk Australia site

'Retreat' Is Not An Option As A California Beach Town Plans For Rising Seas: NPR 


#inundation  #sea rise  #searise  #climatecrisis  #climatechange  #ice  #melting ice  #insurancerisk  #floods  #climate catastrophe  #Urunga

Will Bellingen Property Values be affected by a 10m sea rise?

Bellingen with a 10m sea rise. Click to enlarge.

• We are looking more and more unlikely to prevent global heating.

• Scientists are predicting the melting of the ice covering Greenland  with a subsequent sea level rise of 7m.

• This rise does not factor in sea rise from the melting of Antarctica and other ice.

• Already many properties and infrastructures are likely to flood when a high tide is combined with high local rainfall. What were a hundred year rainfall events are now ten year events.

• The frequency of high rainfall events will increase with global heating and more and more severe hurricanes are predicted because of warmer seas.

• Low coastal areas will also be subjected to severe storm surges.

• Would you buy a property likely to be inundated in twenty years, fifty years, a hundred years? Many wouldn't. Even the perception of possible inundation will greatly affect property values. Insurers are already reluctant to insure many properties that were once only likely to flood every 100 years.

• When certain properties are in less demand their value falls.

• Would you buy a property with a value likely to fall?

•  The view of Bellingen above shows areas likely to be inundated by a 10m sea level rise. Note the flooding of infrastructure and roads.

• Property above a 10m rise will become highly sought after and will greatly rise in value. Property able to be accessed by road will increase in value but properties isolated by sea rise will lose value. A much larger bridge will be needed between North and South Bellingen. New, costly road routes above the Bellinger River floodplain will be required. Will NSW be able to afford to update all its infrastructure? Water supply will be affected.

Isaac Cordal sculpture depicting politicians discussing global warming

Learn more about how sea rise inundation will affect Australian property.

Click here to go to Coastal Risk Australia site

'Retreat' Is Not An Option As A California Beach Town Plans For Rising Seas: NPR 


#inundation  #sea rise  #searise  #climatecrisis  #climatechange  #ice  #melting ice  #insurancerisk  #floods  #climate catastrophe 

Rolling Stone: Journey to Antarctica: What Scientists Think of Trump’s Latest Climate Tweet “You like carbon dioxide so much?” one researcher mused. “Try putting a plastic bag over your head and see how that works out.”

Pic from NY Post

"To scientists in Antarctica, President Trump is weirder than a sea pig. On Tuesday, Trump tweeted a quote from Patrick Moore, a well-known climate denier who claims to have been a co-founder of Greenpeace. (He wasn’t, and Greenpeace has disavowed him as a “paid lobbyist.”) “The whole climate crisis is not only Fake News, it’s Fake Science,” Trump quoted Moore as saying on an episode of Fox & Friends."
 
"I showed Trump’s tweet to Larter on my iPhone. As he read it, he smiled slightly and shook his head. “It’s crazy talk,” said Larter, who is British. “Do any Americans really believe that stuff?”"

Read the Rolling Stone Article

Earth at 2° hotter will be horrific. Now here’s what 4° will look like. | David Wallace-Wells

Big Think

This is what the world will be like if we do not act on climate change.

 - The best-case scenario of climate change is that world gets just 2°C hotter, which scientists call the "threshold of catastrophe". - Why is that the good news? Because if humans don't change course now, the planet is on a trajectory to reach 4°C at the end of this century, which would bring $600 trillion in global climate damages, double the warfare, and a refugee crisis 100x worse than the Syrian exodus. - 

David Wallace-Wells explains what would happen at an 8°C and even 13°C increase. These predictions are horrifying, but should not scare us into complacency. "It should make us focus on them more intently," he says. David Wallace-Wells is a national fellow at the New America foundation and a columnist and deputy editor at New York magazine. He was previously the deputy editor of The Paris Review. He lives in New York City. His latest book is The Uninhabitable Earth: Life After Warming (https://goo.gl/ih35YX) 

Read more at BigThink.com: https://bigthink.com/videos/earth-at-...
Follow Big Think here:
YouTube: http://goo.gl/CPTsV5
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#sea level rise, #2.0 degrees, #4.0 degrees, #ice, #albino effect, polar ice melt, #climate catastrophe, #climate refugees,  #wewantclimateactionnow

Published on Mar 14, 2019

This is what the world will be like if we do not act on climate change. - The best-case scenario of climate change is that world gets just 2°C hotter, which scientists call the "threshold of catastrophe". - Why is that the good news? Because if humans don't change course now, the planet is on a trajectory to reach 4°C at the end of this century, which would bring $600 trillion in global climate damages, double the warfare, and a refugee crisis 100x worse than the Syrian exodus. - David Wallace-Wells explains what would happen at an 8°C and even 13°C increase. These predictions are horrifying, but should not scare us into complacency. "It should make us focus on them more intently," he says. David Wallace-Wells is a national fellow at the New America foundation and a columnist and deputy editor at New York magazine. He was previously the deputy editor of The Paris Review. He lives in New York City. His latest book is The Uninhabitable Earth: Life After Warming (https://goo.gl/ih35YX) Read more at BigThink.com: https://bigthink.com/videos/earth-at-... Follow Big Think here: YouTube: http://goo.gl/CPTsV5 Facebook: https://www.facebook.com/BigThinkdotcom Twitter: https://twitter.com/bigthink

Research: Young people's burden: requirement of negative CO2 emissions: ESD

Global surface temperatures

"Continued high fossil fuel emissions unarguably sentences young people to either a massive, implausible cleanup or growing deleterious climate impacts or both." 

Good climate news: the fossil fuel industry is weaker than ever

Some rare good climate news: the fossil fuel industry is weaker than ever 

 If you’re looking for good news on the climate front, don’t look to the Antarctic. Last week’s spate of studies documenting that its melt rates had tripled is precisely the kind of data that underscores the almost impossible urgency of the moment.

And don’t look to Washington DC, where the unlikely survival of the EPA administrator, Scott Pruitt, continues to prove the political power of the fossil fuel industry. It’s as if he’s on a reality show where the premise is to see how much petty corruption one man can get away with.

But from somewhat less likely quarters, there’s been reason this month for hope – reason, at least, to think that the basic trajectory of the world away from coal and gas and oil is firmly under way.

Read The Guardian article 

#fossilfuelindustry #1.5degrees #polaricemelt  #USA #coal #oilcompanies  #methane gas

WEF: Which cities are at risk from ice sheets melting? This tool holds the answers

"The interactive tool, known as Gradient Fingerprint Mapping (GFM), was developed by scientists at NASA's renowned Jet Propulsion Laboratory in California.

Their invention predicts which areas of ice may contribute to sea level changes in individual cities. 

 

This provides researchers with unprecedented insight into which ice sheets (and cities) they should be “most worried about”."

Read WEF article 

Related:

Australia shamed – again – on climate, as UNEP report calls for urgent action

Video: Climate Science: What You Need To Know / PBS

We want to believe the convenient untruth that climate change is not happening. Unfortunately it is.

It's Okay To Be Smart

Published on Dec 8, 2014

PBS Eons Video: the Last Time The Globe Warmed

... when the world warmed more than any human has ever seen. (So far).

We are warming faster and faster now.

PBS Eons

Published on Dec 4, 2017

Try CuriosityStream today: http://curiositystream.com/eons Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateEONS

"Imagine an enormous, lush rainforest teeming with life...in the Arctic. Well there was a time -- and not too long ago -- when the world warmed more than any human has ever seen. (So far)"

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Special thanks to Nobumichi Tamura for allowing us to use his work: http://spinops.blogspot.com/

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