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56 thoughts on “Monday Message Board”
A dam right across the North Sea
A defense against climate change, but primarily a warning
Date: February 28, 2020
Source: Royal Netherlands Institute for Sea Research
“…A 475-km-long dam between the north of Scotland and the west of Norway and another one of 160 km between the west point of France and the southwest of England could protect more than 25 million Europeans against the consequences of an expected sea level rise of several metres over the next few centuries. The costs, 250-500 billion euros, are “merely” 0.1% of the gross national product, annualy over 20 years, of all the countries that would be protected by such a dam.”
Indian Ocean phenomenon spells climate trouble for Australia
Date: March 9, 2020
Source: Australian National University
Summary: New international research has found a worrying change in the Indian Ocean’s surface temperatures that puts southeast Australia on course for increasingly hot and dry conditions.
“…The new research published in Nature reveals that these historically rare events have become much more frequent and intense during the 20th Century, and this situation is expected to worsen if greenhouse gas emissions continue to rise.”
Amazon rainforest could be gone within a lifetime
Date: March 10, 2020
Source: Bangor University
Summary: Researchers reveal the speed at which ecosystems of different sizes will disappear, once they have reached a point beyond which they collapse — transforming into an alternative ecosystem.
“Large ecosystems, such as the Amazon rainforest, will collapse and disappear alarmingly quickly, once a crucial tipping point is reached, according to calculations based on real-world data.
Writing in Nature Communications, researchers from Bangor University, Southampton University and The School of Oriental & African Studies, University of London, reveal the speed at which ecosystems of different sizes will disappear, once they have reached a point beyond which they collapse — transforming into an alternative ecosystem.
For example, once the ‘point of no return’ is reached, the iconic Amazon rainforest could shift to a savannah-type ecosystem with a mix of trees and grass within 50 years, according to the work.”
Tropical forests’ carbon sink is already rapidly weakening
Date: March 4, 2020
Source: University of Leeds
Summary: The ability of the world’s tropical forests to remove carbon from the atmosphere is decreasing, according to a study tracking 300,000 trees over 30 years.
“…”Our modelling of these factors shows a long-term future decline in the African sink and that the Amazonian sink will continue to rapidly weaken, which we predict to become a carbon source in the mid-2030s.”
In the 1990s intact tropical forests removed roughly 46 billion tonnes of carbon dioxide from the atmosphere, declining to an estimated 25 billion tonnes in the 2010s.
The lost sink capacity in the 2010s compared to the 1990s is 21 billion tonnes carbon dioxide, equivalent to a decade of fossil fuel emissions from the UK, Germany, France and Canada combined.
Overall, intact tropical forests removed 17% of human-made carbon dioxide emissions in the 1990s, reduced to just 6% in the 2010s.
This decline is because these forests were less able to absorb carbon by 33% and the area of intact forest declined by 19%, while global carbon dioxide emissions soared by 46%.”
475-km-long dam between the north of Scotland and the west of Norway and another one of 160 km between the west point of France and the southwest of England
What could possibly go wrong?
A bit topic, but if there’s a pandemic or something and the large workforce needed to sustain dams like that isn’t available things could go from bad to worse quite quickly. Especially if some idjit suggests lowering the sea level inside just a bit more to make more land available…
Maz in Oz – and they pump the sea back over the wall so as to negate “rising sea levels”!
Techno dyke fix by our politicians – gaffer tape. Robot. Sorted.
idjits. I am absolutely over adaption instead of fixing cause.
Carbon tax anyone?
Which leads to Svante’s “The lost sink capacity in the 2010s compared to the 1990s is 21 billion tonnes carbon dioxide, equivalent to a decade of fossil fuel emissions from the UK, Germany, France and Canada combined.”. Now? After Bolsonaro?
Just send Brazil the proportional difference of carbon tax related to remediation of forest – ” the area of intact forest declined by 19%”.
I assume a 30 to 50 year lag though before forest returns prior absorbtion. ““merely” 0.1% of the gross national product?, annualy over 20 years”. Bargin.
Honest governmunt have rushed an ad out: https://youtu.be/Hks6Nq7g6P4
KT2: you sure that’s not an EDM act? “Techno dyke fixx” just sounds like a band name.
It would be easier to point the finger at Bolsonaro if we weren’t so busy deforesting Australia. I nearly wrote defenestrating, but sadly that would be an appropriate response and we don’t do that here.
Aotearoa have closed their borders, which is mostly funny because three days ago some pillock was abusing me for suggesting that response. Apparently pillock’s clients need to be stroked in person.