Peak Oil News and Message Boards

dohboi wrote:EU, the last part of your screed was wildly off topic and quite offensive.

If you feel some overwhelming need to talk about sexual assault, for some reason, please open your own thread on it somewhere, but keep it out of GW threads please. Thanks.

...•Hundreds of millions of lives are at stake... should the world warm more than 1.5 degrees Celsius, which it will do as soon as 2040, if current trends continue.

•Nearly all coral reefs would die out,
•wildfires and heat waves would sweep across the planet annually, and
•the interplay between drought and flooding and temperature would mean that the world’s food supply would become dramatically less secure.

Avoiding that scale of suffering, the report says, requires such a thorough transformation of the world’s economy, agriculture, and culture that “there is no documented historical precedent.”

...What has been called a genocidal level of warming is already our inevitable future. The question is how much worse than that it will get...

...We are on track for four degrees of warming, more than twice as much as most scientists believe is possible to endure without inflicting climate suffering on hundreds of millions or threatening at least parts of the social and political infrastructure we call, grandly, “civilization.”

The only thing that changed, this week, is that the scientists, finally, have hit the panic button.

Outcast_Searcher wrote:

Ibon wrote:First it's 3 miles inland. We had it on the market, decided not to sell in the end.
We paid $ 500k for both houses in 2009 at the bottom of the market and last year we grossed $ 130k rental. Since I refuse to buy stocks and play the market I need to find a better return doing something else with that asset before I would sell and the sheeples are still happily in denial.... so no hurry still at least from SLR.

I looked and see that the average land is roughly 100 feet above sea level in Florida.


Despite all the Cassandra-ism around here, short of a giant meteor hitting the earth, nuclear attack, etc., you should profit nicely if trends change and you act in a reasonable timeframe.

Newfie wrote:Very familiar with wind driven tides. Typically in shallow waters with some decent fetch. From what I make out this is persistent, not wind driven.

I’m gonna try to keep an eye on it and see if I can make some sense of it. I’ve no good explanation so far.

Feds are 'trying to silence' the kids suing the Trump administration over global warming

(CNN)The "climate kids" were back on the steps of a federal courthouse in Oregon on Monday. But their case against the United States government, alleging violations of their constitutional rights to a safe and livable atmosphere in the face of runaway global warming, has dragged on for so long without a trial that some of them aren't exactly kids anymore. ...

...... After years of hearings, a trial date had been set for October 29.
But 10 days before trial, the US Supreme Court issued a stay that has temporarily halted proceedings. The court is considering the federal government's petition for writ of mandamus, which the Department of Justice describes as an "extraordinary remedy" that should be used in "exceptional circumstances of peculiar emergency or public importance."
Federal attorneys are questioning whether the kids have a right to "a climate system capable of sustaining human life" under the Constitution or public trust doctrine. They say federal authorities will waste time and money by responding to what they call "baseless claims." And they argue in court filings it's a violation of the separation of powers to ask courts essentially to impose climate-change policy on federal officials, rather than waiting for Congress or other elected officials to do that.
"In our view, the Oregon lawsuit is an unconstitutional attempt to use a single court to control the entire nation's energy and climate policy," ......

We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

A team of more than 100 scientists has assessed the impact of global warming on thousands of tree species across the Amazon to discover the winners and losers from 30 years of climate change. Their analysis found the effects of climate change are altering the rainforest's composition of tree species but not quickly enough to keep up with the changing environment.

The team, led by University of Leeds in collaboration with more than 30 institutions around the world, used long-term records from more than a hundred plots as part of the Amazon Forest Inventory Network (RAINFOR) to track the lives of individual trees across the Amazon region. Their results found that since the 1980s, the effects of global environmental change - stronger droughts, increased temperatures and higher levels of carbon dioxide in the atmosphere - has slowly impacted specific tree species' growth and mortality

In particular, the study found the most moisture-loving tree species are dying more frequently than other species and those suited to drier climates were unable to replace them. ... The species most vulnerable to droughts are doubly at risk, as they are typically the ones restricted to fewer locations in the heart of the Amazon, which make them more likely to be extinct if this process continues.

A warmer, drier climate is expected is increase the likelihood of larger-scale forest disturbances such as wildfires, insect outbreaks, disease and drought, according to a new study co-authored by a Portland State University professor.

The study, published Oct. 19 in the journal Nature Communications, sought to provide a more complete snapshot of disturbances in the world's temperate forests by quantifying the size, shape and prevalence of disturbances and understanding their drivers.

The study found that while many temperate forests are dominated by small-scale disturbance events -- driven largely by windstorms and cooler, wetter conditions -- there was also a strong link between high disturbance activity and warmer and drier-than-average climate conditions. Andrés Holz, a co-author and geography professor in PSU's College of Liberal Arts and Sciences, said this suggests that with a warming climate, disturbances are expected to become larger and more severe in some temperate forests including the western U.S.

"Under the warmer conditions we have been seeing, it is likely that we're going to see a higher probability of areas that tend to have very big disturbances," he said.

Climate change may be occurring even faster than first thought.

That is according to a ground-breaking new study by Dr Clayton Magill from the Lyell Centre at Heriot-Watt University.

Scientists measured the vast migration of sea bed materials such as clay and sand, a process that occurs over thousands of years.

The research found that constant movement resulted in the erosion of ancient fossils trapped within the ocean floor and that these fossils release their harmful carbon dioxide, which is a strong greenhouse gas. Researchers previously thought that the rate of erosion on these fossils was significantly slower – hence climate change was slower.

... “We don’t know how much carbon is trapped in the ocean but now we’ve proven the process, it could pose catastrophic threat to earth’s climate.”

Our results suggest differential lateral transfer dynamics can influence apparent lead–lag patterns among proxies with differing grain-size associations.

Open Source: Clayton R. Magill et al. Transient hydrodynamic effects influence organic carbon signatures in marine sediments, Nature Communications (2018)

Abstract

Ocean dynamics served an important role during past dramatic climate changes via impacts on deep-ocean carbon storage. Such changes are recorded in sedimentary proxies of hydrographic change on continental margins, which lie at the ocean–atmosphere–earth interface. However, interpretations of these records are challenging, given complex interplays among processes delivering particulate material to and from ocean margins. Here we report radiocarbon (14C) signatures measured for organic carbon in differing grain-size sediment fractions and foraminifera in a sediment core retrieved from the southwest Iberian margin, spanning the last ~25,000 yr. Variable differences of 0–5000 yr in radiocarbon age are apparent between organic carbon in differing grain-sizes and foraminifera of the same sediment layer. The magnitude of 14C differences co-varies with key paleoceanographic indices (e.g., proximal bottom-current density gradients), which we interpret as evidence of Atlantic–Mediterranean seawater exchange influencing grain-size specific carbon accumulation and translocation. These findings underscore an important link between regional hydrodynamics and interpretations of down-core sedimentary proxies.

jawagord wrote:Thwaites glacier study ..... observe a natural process that has been going on for millions of years.

Plantagenet wrote:

jawagord wrote:Thwaites glacier study ..... observe a natural process that has been going on for millions of years.

Actually, the huge cavity just studied under the Thwaites Glacier using submersibles is thought to have mostly formed within the last three years as warm ocean water begins to penetrate under the Thwaites Glacier. The basic concept involved here is that the warm ocean water is rapidly melting the base of the glacier.

If it took "millions of years" to form, then I wouldn't have posted about it here in this topic about "Abrupt Climate Change."

Get it now?

Cheers!

The cavity is about two-thirds the area of Manhattan and nearly 1,000 feet tall, according to a study released Wednesday by NASA’s Jet Propulsion Laboratory. The hulking chamber is large enough to have contained about 14 billion tons of ice — most of which the researchers say melted in three years.