The Great Zaganza
Maledictorian
- Joined
- Aug 14, 2016
- Messages
- 25,987
Trump should just order the oceans not to rise.
NOAA say equal warmest May and second warmest year to date.
What makes it surprising is that this is an ENSO neutral year. Years which set, or come close to setting, new record highs are usually El Nino years, for obvious reasons.
I'm wondering if the lack of the usual global dimming due to the lockdown might be a factor?
Climate action today will take decades to manifest in global temperatures because of “climate inertia”
Climate action taken by the world today wouldn't be noticed for decades to come, according to researchers who say warming on Earth won't start to slow down for at least 20 years.
And that's probably an optimistic scenario.
A study published Tuesday in Nature Communications illustrates how the rewards for aggressive action would come much later. If global carbon dioxide emissions began falling tomorrow by at least 5% every year, the rate at which the Earth is warming wouldn't begin to change —at least in a detectable way —until after the year 2040 or so.
Slash CO2, Then Wait—and Wait—for Temperatures to Drop (Scientific American)
Given human nature it's near impossible to get people to sacrifice something in the here and now for a hypothetical benefit decades in the future. That's the problem.
But this isn't really new news, is it?
Right exactly true. All well known for quite some time, and spot on regarding human nature too.Slash CO2, Then Wait—and Wait—for Temperatures to Drop (Scientific American)
Given human nature it's near impossible to get people to sacrifice something in the here and now for a hypothetical benefit decades in the future. That's the problem.
But this isn't really new news, is it?
Decades? For many people even two weeks is too long, even when facing the possibility of imminent death if they don't (Covid-19).Given human nature it's near impossible to get people to sacrifice something in the here and now for a hypothetical benefit decades in the future.
How is not destroying the environment, living a healthy life, saving money and enjoying the latest technology a sacrifice?
Not required.....Because it would require economic sacrifice to achieve them.
Doomsayers and hopemongers alike may need to revise their climate predictions after a study that almost rules out the most optimistic forecasts for global heating while downplaying the likelihood of worst-case scenarios.
The international team of scientists involved in the research say they have narrowed the range of probable climate outcomes, which reduces the uncertainty that has long plagued public debate about this field.
This confluence of sources has allowed scientists to estimate with a 90% level of probability that climate sensitivity is between 2.3C and 4.7C. The most likely level of climate sensitivity has nudged slightly above 3C. Hausfather says a figure below 2C is extremely unlikely. Above 5C remains possible, though the study lowers that likelihood to 10%.
In the meantime, it’s certainly worth stressing that the spread of sensitivities across the models is not itself a probability function. That the CMIP5 (and CMIP3) models all fell within the assessed range of climate sensitivity is probably best seen as a fortunate coincidence. That the CMIP6 range goes beyond the assessed range merely underscores that. Given too that CMIP6 is ongoing, metrics like the mean and spread of the climate sensitivities across the ensemble are not stable, and should not be used to bracket projections.
Abstract
Climate simulation-based scenarios are routinely used to characterize a range of plausible climate futures. Despite some recent progress on bending the emissions curve, RCP8.5, the most aggressive scenario in assumed fossil fuel use for global climate models, will continue to serve as a useful tool for quantifying physical climate risk, especially over near- to midterm policy-relevant time horizons. Not only are the emissions consistent with RCP8.5 in close agreement with historical total cumulative CO2 emissions (within 1%), but RCP8.5 is also the best match out to midcentury under current and stated policies with still highly plausible levels of CO2 emissions in 2100.
Yes it is real. No it is not anywhere near enough. Abiotic weathering of rock is between ~ 10% -20% of the terrestrial carbon cycle depending on the study you look at... So enhanced weathering could be some help. However, it is like picking up pennies while hundred dollar bills fly by in the wind overhead.Hmm. I'm just popping in here since I saw something potentially interesting.
Project Vesta. Really short version - using olivine and beaches to help remove carbon dioxide from the atmosphere and de acidify the ocean a bit. Haven't looked at the relevant science myself, though.
"Permaculture (permanently sustainable agriculture) is a philosophy of working with, rather than against nature; of protracted & thoughtful observation rather than protracted & thoughtless labor; & of looking at plants & animals in all their functions, rather than treating any area as a single-product system." Bill Mollison
Yes it is real. No it is not anywhere near enough.
Conservatively 80% of weathering is biotic, and the vast majority of that is in the soils worldwide. Restoring this important part of the ecosystem function in degraded soils is vastly more important than all the energy and expense needed to mine olivine and place it on beaches.
It will require a three pronged approach worldwide.
- Reduce fossil fuel use by replacing energy needs with as many feasible renewables as current technology allows.
- Change Agricultural methods to high yielding regenerative models of production made possible by recent biological & agricultural science advancements.
- Large scale ecosystem recovery projects similar to the Loess Plateau project, National Parks like Yellowstone etc. where appropriate and applicable.
Very good point. I would try a larger trial just to see if there were any harmful ecological side effects (like excessive leaching of heavy metals or some such), and if not...great idea for disposal of certain types of mine tailings.....As they note, a huge amount of olivine has already been mined while miners are seeking other things and is just being treated as waste rock. If, say, just that was used, that effectively takes the mining part of the energy and expense out of the picture, making it significantly more cost and energy effective. .
Perhaps if you removed those blinders...(Answer to Aridas)
If you look at the actual warming statistics they show that it's only getting warmer during the winter time and in cold countries. There's also that storms and forest fires are down since 50 years ago. The only thing would be rising sea levels but from what I can see,
I give up. What's the answer?Also what makes oil company executives an authority on global warming?
It's certainly disputable. If you want to argue that 15ºC is lower than 14ºC then go ahead - nobody's stopping you.With CO2 based global warming there's a special danger in that it's taken to be undisputable
All the models failed to 'predict' that the last 20 years would have a climate? Seems unlikely.That's why after the models have all failed to predict the last 20 years,
So you admit that the Earth is getting warmer?CO2 levels in the antarctic record went up after the earth got hotter,
So you admit that the Earth is getting warmer?
(Answer to Aridas)
If you look at the actual warming statistics they show that it's only getting warmer during the winter time and in cold countries.
There's also that storms
The latter, I should note is argued by H. Leighton Steward -According to the National Hurricane Center, storms are no more intense or frequent worldwide than they have been since 1850. Temperatures were high in the 1920s and 1930s when there was much less CO 2 in the atmosphere. Constant 24-7 media coverage of every significant storm worldwide just makes it seem that way.
Naturally, that the guy has severe financial conflicts of interest doesn't negate what he says directly, but really should make you much more wary of what he's pushing.Steward is also a director at oil and gas company EOG Resources, formerly known as Enron Oil and Gas Company, where he earned $617,151 in 2008. Steward also serves as an honorary director of the American Petroleum Institute. [2]
It is unclear whether global warming is increasing hurricane frequency but there is increasing evidence that warming increases hurricane intensity.
Global satellite data since 1981 can be used to extend analysis of hurricane intensity to each ocean, looking for any trend in wind speed (Elsner 2008). Figure 3 plots the long term trend in maximum wind speed (eg - whether hurricanes are getting stronger or weaker) against different strength hurricanes. This tells us not only whether hurricanes are overall getting stronger but also how different strength hurricanes are being affected. Overall, there is a statistically significant upward trend (the horizontal red line). But more significantly, Elsner found weaker hurricanes showed little to no trend while stronger hurricanes showed a greater upward trend. In other words, stronger hurricanes are getting stronger. This means that as sea temperatures continue to rise, the number of Category 4 and 5 hurricanes hitting land will inevitably increase.
and forest fires are down since 50 years ago.
Wildfire has been an important process affecting the Earth's surface and atmosphere for over 350 million years and human societies have coexisted with fire since their emergence. Yet many consider wildfire as an accelerating problem, with widely held perceptions both in the media and scientific papers of increasing fire occurrence, severity and resulting losses. However, important exceptions aside, the quantitative evidence available does not support these perceived overall trends. Instead, global area burned appears to have overall declined over past decades, and there is increasing evidence that there is less fire in the global landscape today than centuries ago. Regarding fire severity, limited data are available. For the western USA, they indicate little change overall, and also that area burned at high severity has overall declined compared to pre-European settlement. Direct fatalities from fire and economic losses also show no clear trends over the past three decades. Trends in indirect impacts, such as health problems from smoke or disruption to social functioning, remain insufficiently quantified to be examined. Global predictions for increased fire under a warming climate highlight the already urgent need for a more sustainable coexistence with fire. The data evaluation presented here aims to contribute to this by reducing misconceptions and facilitating a more informed understanding of the realities of global fire.
The only thing would be rising sea levels but from what I can see, the Oceans are large enough that they won't be going up by that much.
Also what makes oil company executives an authority on global warming?
With CO2 based global warming there's a special danger in that it's taken to be undisputable where the scientific process of retesting conclusions isn't allowed to function like it normally would. That's why after the models have all failed to predict the last 20 years, and the CO2 levels in the antarctic record went up after the earth got hotter, the theory still is prevalent.
First, sea levels, then. You sound a bit dismissive about this, but even a few inches has a very disproportionate effect on humans.
Interactions between the contributions to coastal water level have significant implications for projected changes in the frequency and amplitude of future extreme events, yet most projections neglect the interactions discussed in this paper and consider only linear additions of the relevant processes
But when people were asked if their governments should tackle the issue with the same urgency as they've tackled the coronavirus pandemic, major differences between rich and poor started to appear.
Japan, Sweden, Australia, the US and UK all have less than 45% of respondents strongly agreeing with urgent action.
California hit a grim milestone on Sunday as the total number of acres burned this wildfire season crossed 4 million, according to the California Department of Forestry and Fire Protection, or Cal Fire.
The agency said that since it started recording the amount of land burned in a single season the state had never surpassed 2 million acres until this year.
"The 4 million mark is unfathomable. It boggles the mind, and it takes your breath away," Scott McLean, a spokesperson for Cal Fire, told The Associated Press.
California Wildfires Have Burned 4 Million Acres And The Season Isn't Over Yet
Makes me wonder how much the fires themselves add to the problem.
It's a small problem, but not nearly as big a deal as these fires
https://www.nature.com/articles/d41586-020-02568-y
It's not just the difference in total CO2 that is the problem. These Peat/Permafrost fires are releasing Carbon that has been sequestered for tens or hundreds of thousands of year.
Brush fires in California can rapidly re-absorb carbon due to new growth following the fire, so differences in land use are the real problem. Eg desertification in which the new landscape won't hold as much carbon as the current landscape.
In terms of total CO2 though, there is no real comparison. Artic peat lands and Permafrost hold enough carbon to drive 3 - 5 deg of warming on their own without even factoring in fossil fuels. .
Then there's the methane, 25x as heat-trapping as CO2...
Discussed before, but due to it’s short lifespan in the atmosphere methane released from Peat/Permafrost would decay into CO2 before there was any meaningful effect on climate. It’s all but impossible to melt that much permafrost over the course of a decade, but even if you could the climate impact would also last only a decade or so, after that it’d be like a CO2 release, rather than a Methane release.
Interesting. Net effect, still bad. So to reach the Permian-level methane release, we need ocean floor methane. Coming right up...
Dunno if it has been measured here, but Norway is planning to use our oil rigs in reverse, by capturing Co2 on land for then to pump it to the oil rigs and then down into the caverns that used to be filled with oil. We call the project "Longship".
https://www.regjeringen.no/en/aktue...rbon-capture-and-storage-in-norway/id2765288/