Climate Change

[CaaC (John)+]

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The world needs to do two things to meet its climate targets, one of which needs to ramp up now

Carbon dioxide removal is a vital cog in the carbon reduction effort, but it’s lagging behind.

The world needs to heavily invest in efforts to remove long-lived carbon dioxide from the atmosphere, as well as rapidly reduce greenhouse gas emissions.

This is the chief finding of an independent report drawing on the expertise of 26 international researchers, who say all scenarios laid out by the Intergovernmental Panel on Climate Change will require decades of concerted carbon removal if the world is to avoid the two-degree ceiling target of the Paris Agreement.

Substantial scale up of both conventional carbon removal methods – like reforestation – and innovative, novel technologies, is required.

Unfortunately, the carbon dioxide removal sector is, in the view of the report, at roughly the same point the renewables sector was at the end of last century: promising, but in need of major investment to be ‘Paris effective’.

Reforestation – the creation of new forests – and the integration of new vegetation into agricultural land, are typically the first port-of-call for carbon capture. These methods could sequester up to 10 gigatonnes of carbon dioxide a year in 2050.

But right now, conventional methods would account for 2,000 megatonnes of carbon capture annually.

It overshadows innovative capture technology though, which accounts for just two megatonnes, or less than 0.1%, of carbon capture.

“This illustrates a need for massive scale up,” says one of the report’s lead authors Gregory Nemet from University of Wisconsin-Madison.

“The scale up is even bigger on the novel CDR [carbon dioxide removal] because it’s starting from such a small base of only about 1-2 million tonnes a year, and we’re talking about getting up to gigatons in the next 30 years.

“27 years from now, we need to scale up novel CDR by a factor of 1300 and we have to, in fact, increase by a factor of 30 by 2030. So that’s the big challenge.”

That big gap needs to close quickly

Three scenarios relevant to the Paris Climate Agreement – emphasising either renewable energy, carbon removal or reduction in carbon use – highlight the divide between ambition and requirement.

Conventional means are only included in national pledges to remove around 2,600 megatonnes of carbon annually until decade’s end, but in each scenario, current carbon removal mechanisms will fall significantly short in helping to meet the Paris target.

From: The State of Carbon Dioxide Removal – 1st Edition. Available at: https://www.stateofcdr.org

The immediate opportunity is in expanding the use of forest-based capture methods.

“The biggest potentials amongst the most ready technologies [are] the tree planting, soil carbon and biochar,” says Dr Annette Cowie, an adjunct professor at the University of New England’s school of environmental and rural science.

Soil carbon sequestration is a biological process where improvements in land management allow CO₂ to be captured and stored in soils, which in turn improves their quality, resilience and productivity. But while it’s a relatively cheap form of carbon removal, the expense of measuring hard-to-see carbon in soils is an important consideration for government’s regulating offset schemes, which recompense proponents of such projects.

Biochar is a residue (like charcoal and other carbon products) produced by the slow heating of organic materials. But whereas soil carbon is a mature form of carbon removal, biochar production is only just beginning to realise its commercial potential in Australia.

“Building soil organic matter is always a good thing to do, it’s good for agriculture and the environment, so there’s no reason not to do that. But there are barriers to, for example, developing schemes to give carbon credits to farmers for soil carbon.

“The methods have all got pros and cons, and we need to be looking at all of them.”

Time to ramp up

Investment and development of novel technologies is seen as essential to deplete excess carbon.

These include technologies that directly capture and store air carbon, treat oceans with alkaline materials to reduce acidity, redisperse marine nutrients, directly removing carbon and using bioenergy in the process of sequestration.

But nations around the world, including Australia, are still at the start line when it comes to implementing new carbon removal technology.

Aaron Tang from ANU’s Fenner School of the Environment and Society says there’s a slim silver lining in Australia’s adoption of climate targets in law, but there’s still a distance to go before it begins the physical removal of carbon.

While existing policy and credit schemes offer incentives to implement carbon sequestration projects, these aren’t yet at a scale sufficient to achieve the removal required.

“We’re not really where we want to be,” Tang says.

“We don’t’ really have explicit policy to scale up CDR… we don’t have even have a substantive political and policy discussion underway in Australia just yet… but I think Australian carbon removal policy is very much on the horizon.”

The solution to making deep carbon cuts lies, according to the report, in pairing both removal and reduction strategies.

“One of the main takeaways from this report is we should really be thinking about a portfolio of solutions,” says Nemet. “It’s a portfolio because we’re really focussed on emissions reductions and then we’re adding conventional CDR, and then we’re scaling up and eventually adding novel CDR

https://cosmosmagazine.com/earth/carbon-dioxide-removal-new-technology/

 

Edited January 19, 2023 by CaaC (John)
Spacing correction

[Bluebird Hewitt]

I know it's from the Daily Mail, but popping this here as I thought it was pretty interesting, even if it is stating the obvious.

https://www.dailymail.co.uk/news/article-11752321/Seattle-schoolboy-17-exposes-carbon-footprint-hypocrite-private-jet-loving-stars.html

[CaaC (John)+]

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Climate change: life in ocean ‘twilight zone' at risk from warming

Climate change could dramatically reduce life in the deepest parts of our oceans that are reached by sunlight, scientists warn.

Global warming could curtail life in the so-called twilight zone by as much as 40% by the end of the century, according to new research.

The twilight zone lies between 200m (656ft) and 1,000m (3,281ft).

It teams with life but was home to fewer organisms during warmer periods of Earth's history, researchers found.

In research led by the University of Exeter, scientists looked at two warm periods in Earth's past, about 50 million years ago and 15 million years ago, examining records from preserved microscopic shells.

They found far fewer organisms lived in the zone during these periods, because bacteria degraded food more quickly, meaning less of it reached the twilight zone from the surface.

"The rich variety of twilight zone life evolved in the last few million years, when ocean waters had cooled enough to act rather like a fridge, preserving the food for longer, and improving conditions allowing life to thrive," said Dr Katherine Crichton, from the University of Exeter, who was the lead author of the study.

The twilight zone, also known as the disphotic zone, is a vital habitat for marine life. It is too dim for photosynthesis to occur but home to more fish than the rest of the ocean put together, as well as a wide range of life including microbes, plankton and jellies according to the Woods Hole Oceonographic Institution.

It also serves a key environmental function as a carbon sink - drawing planet-heating gas out of our atmosphere.

The scientists simulated what might be happening in the twilight zone now, and what could happen in future due to climate warming. They said their findings suggested that significant changes may already be underway.

"Our study is a first step to finding out how vulnerable this ocean habitat may be to climate warming," said Dr Crichton.

"Unless we rapidly reduce greenhouse gas emissions, this could lead to the disappearance or extinction of much twilight zone life within 150 years, with effects spanning millennia thereafter."

The paper was published in the journal Nature Communications.

https://www.bbc.co.uk/news/science-environment-65460128

 

[OrangeKhrush]

the climate has changed as we head into winter.

[CaaC (John)+]

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Antarctica’s sea ice growth is at record lows. But it’s more complicated than just climate change

Antarctica is melting at record rates. But, unlike the rest of the warming world, this change began just a few years ago instead of decades, and scientists don’t know why.

Sea ice in Antarctica grows and diminishes every year in line with the seasons. But this year’s winter growth is significantly lower than expected..........

 

[Happy Blue]

On 21/06/2023 at 08:48, CaaC (John) said:

 

It was warmer when the Romans where here, agenda 30 is about enslavement of the human race "you will own nothing and be happy" klaus schwab WEF 

This man speaks for 1500+ climate scientist

 

 

[Tommy]

42 minutes ago, Happy Blue said:

It was warmer when the Romans where here, agenda 30 is about enslavement of the human race "you will own nothing and be happy" klaus schwab WEF 

This man speaks for 1500+ climate scientist

 

 

I have a hard time to believe you can tie your own shoes. 

[Happy Blue]

1 hour ago, Tommy said:

I have a hard time to believe you can tie your own shoes. 

You are part of the problem, too dumb to see the truth

[OrangeKhrush]

wouldn't the solution be to get China and India to emmision levels of the rest of the world?

[Dr. Gonzo]

9 hours ago, OrangeKhrush said:

wouldn't the solution be to get China and India to emmision levels of the rest of the world?

Yeah, most likely.

China's actually taking lots of steps to promote green tech though, probably because they recognise the issue. But I think big polluting industries, especially in these high polluting countries, are going to make more of an impact than any one individual trying to do their part for the climate. Because the scale of one person vs. a whole industry is so big you can't even compare them.

There's the question of: well these countries are developing, how can we ask them to reduce emissions as they develop rapidly. And I don't know the question, because it's a fair point.

[OrangeKhrush]

13 hours ago, Dr. Gonzo said:

Yeah, most likely.

China's actually taking lots of steps to promote green tech though, probably because they recognise the issue. But I think big polluting industries, especially in these high polluting countries, are going to make more of an impact than any one individual trying to do their part for the climate. Because the scale of one person vs. a whole industry is so big you can't even compare them.

There's the question of: well these countries are developing, how can we ask them to reduce emissions as they develop rapidly. And I don't know the question, because it's a fair point.

emerging countries like China and India are heavily reliant on industry which is a problem that being said are slowly moving away but they combine for 2/3's of the global emissions,  so until they drop that amount the rest of the world can't do much more without ending up on energy life support. 

[Dr. Gonzo]

https://www.latimes.com/environment/story/2020-09-28/death-valley-national-park-heat-tourists
 

Some people are idiots

[Carnivore Chris]

3 hours ago, Dr. Gonzo said:

https://www.latimes.com/environment/story/2020-09-28/death-valley-national-park-heat-tourists
 

Some people are idiots

Heat tourism? This planet we live on is quite frankly fucked

[Carnivore Chris]

 

For fuck sake .

 

 

[Dr. Gonzo]

1 hour ago, Carnivore Chris said:

Heat tourism? This planet we live on is quite frankly fucked

We, as a species, are remarkable because we're so fucking stupid... yet here we are sitting atop the food chain wondering if it'll be entertaining to fry ourselves during a heatwave.

[Beelzebub]

 

[Dr. Gonzo]

Bill Gates is a twat, he's trying to have a railroad line moved because it's too close to his new bachelor pad so he wants to have it run through an existing neighborhood instead. The dickhead could probably afford to soundproof his house, but nah he'd rather inconveninece others.

[Happy Blue]

The Sun is in a solar maximum people, wonder why it's getting warmer?? 

 

[Michael]

11 hours ago, Dr. Gonzo said:

Bill Gates is a twat, he's trying to have a railroad line moved because it's too close to his new bachelor pad so he wants to have it run through an existing neighborhood instead. The dickhead could probably afford to soundproof his house, but nah he'd rather inconveninece others.

He is the biggest twat going, I hate that guy.

[Beelzebub]

 

[Dr. Gonzo]

12 hours ago, Happy Blue said:

The Sun is in a solar maximum people, wonder why it's getting warmer?? 

 

About 4 minutes in you see the real purpose of his video and then at 5:25 he goes back to talking about the climate  - I guess he thinks climate skeptics are easy marks.

[Dr. Gonzo]

6 hours ago, Michael said:

He is the biggest twat going, I hate that guy.

I think there's worse people out there in the world (probably an understatement lol - I think basically every politician in the world deserves some sort of fate worse than death tbh)... but I never knew how much of an arsehole he really was until he moved close to where I'm at now. He sounds like an absolute nightmare of a neighbor. And I know it's really a bunch of other rich arseholes he's terrorising, but it's astounding how much of a cunt he thinks it's alright to be just because he's got a nearly endless pile of cash.

[Happy Blue]

1 minute ago, Dr. Gonzo said:

About 4 minutes in you see the real purpose of his video and then at 5:25 he goes back to talking about the climate  - I guess he thinks climate skeptics are easy marks.

He has ads in every vid because YouTube dont pay him for telling the truth ..it was warmer in the roman empire days though, must of been them trucks they had, nothing to do with the big ball of fire above us lol

[Dr. Gonzo]

Just now, Happy Blue said:

He has ads in every vid because YouTube dont pay him for telling the truth ..it was warmer in the roman empire days though, must of been them trucks they had, nothing to do with the big ball of fire above us lol

He'd get paid by youtube if he got enough viewers. I don't think there's any evidence of it being warmer or cooler in the Roman era because it's not as though we've got records that climate records that go back that far. And even if they did... it's not like they had celcius back then, so I'm not sure how much useful data we'd really get from their measurements. But I'm fairly certain we don't have any reliable record of the climate going far that back.

I'm inclined to trust the British Navy, as I think they've got the longest running measurements of sea temperature in the world. And as far as I know, is the longest running piece of evidence that tracks the global temperatures. In measurements we all know and understand.

I'd trust cold hard data over anyone on Youtube or the TV tbh. They're all just grifters trying to get your attention for ad revenue.

[Happy Blue]

40 minutes ago, Dr. Gonzo said:

He'd get paid by youtube if he got enough viewers. I don't think there's any evidence of it being warmer or cooler in the Roman era because it's not as though we've got records that climate records that go back that far. And even if they did... it's not like they had celcius back then, so I'm not sure how much useful data we'd really get from their measurements. But I'm fairly certain we don't have any reliable record of the climate going far that back.

I'm inclined to trust the British Navy, as I think they've got the longest running measurements of sea temperature in the world. And as far as I know, is the longest running piece of evidence that tracks the global temperatures. In measurements we all know and understand.

I'd trust cold hard data over anyone on Youtube or the TV tbh. They're all just grifters trying to get your attention for ad revenue.

Its definitely getting hotter, our star is in a solar maximum cycle. Ive just ordered an EV, hopefully we don't have anymore lockdowns so I can get it by December