[gault8121]

The article failed to mention a really important idea - Sulfur Dioxide is not the only aerosol that can be injected, and there are other options that seem much more promising. For example, using Calcium Carbonate may actually help restore the Ozone layer while also reducing the temperature.

> Source: https://news.harvard.edu/gazette/story/2019/09/harvard-group...

> "The chemists think the solution could be calcium carbonate — the stuff of chalk, limestone, marble, and seashells. It may be less harmful to the ozone, and it’s not a big health concern. The team is studying how the substance affects chlorine and nitrogen oxides, which also exist in the stratosphere — largely due to man-made emissions — and speed ozone destruction. The researchers think the calcium carbonate might help to lower levels of these gases."

[woliveirajr]

And we might end up reducing atmosphere humidity and having torrential rain.

[gault8121]

Yes, and so that's why we need to study these things now. These aerosols dissipate - you need to continually add them to the atmosphere every few months. The point here is that this a temporary measure to bring down the temperature to prevent additional deaths caused from global warming. If it ended up causing more harm than the co2 alone, this could be stopped. However, when faced with the impossible situation all of humanity is in now, applying a tourniquet to stop the bleeding buys time for decarbonization to happen.

[upsidesinclude]

>prevent additional deaths caused from global warming

How would one even begin to make such an assessment? Natural disaster is less likely than ever to cause death with a higher than ever population. Damage dollar cost increases from weather have increased as a result of development, not increasingly severe events.

>the impossible situation all of humanity is in now

Compared to the current resurgence in desire for nuclear war, war and diminishing diplomacy? We are not in an impossible situation because of weather. This is alarmist and completely predicated on climate models being accurate, despite that they have always proven to be inaccurate.

"Whelp, no issue there, those were the old models. We've got new, accurate models now!!"

[mort96]

Climate models are generally inaccurate in the opposite direction of what we want though. Things are progressing faster than predicted.

But I assume nothing will change your politically motivated opinion that climate change is no big deal.

[yodon]

>But I assume nothing will change your politically motivated opinion that climate change is no big deal.

The fact that you disagree with someone does not make the other person's analysis a "politically motivated opinion" any more than your disagreeing with them makes your analysis a "politically motivated opinion."

Either party in a disagreement can always choose to stoop to insults and ad hominem attacks. That doesn't mean stooping to insults and ad hominem attacks is the path to the best or desired outcomes.

[mort96]

Come on. They're conflating climate and weather, downplaying the effects, and calling people who are concerned about the ongoing mass extinction alarmists. This is good old climate change denialism, there is nothing here that's worth taking seriously.

[origin_path]

No, they are not. Models vs observations:

https://www.drroyspencer.com/wp-content/uploads/CMIP5-90-mod...

Even the modellers themselves admit this. When they felt a need to re-declare victory a few years ago in response to graphs like that one, even then, their argument was "if we re-calculate the original models with better data then they aren't so inaccurate anymore". It wasn't that the original predictions were correct.

Now look at a graph of temperatures as measured by satellites:

https://www.drroyspencer.com/latest-global-temperatures/

Notice that it has long periods where it moves sideways, despite continuing emissions. Models don't predict these apparently arbitrary pauses.

"But I assume nothing will change your politically motivated opinion that climate change is no big deal."

This is a thought terminating cliché. The default non-political position in any discussion of what should government or society do is always "do nothing". It has to be - think about it. It's always the people agitating for change who are engaged in the process of politics, because it's via the process of politics that change on the level of government policy is enacted.

What's happening here is the opposite; the people saying "default to nothing, we think the need is unproven" are the people taking the default non-political position. It's the people demanding massive enforced changes to people's lives that are engaging in politics. And unfortunately, history teaches that people who insist on totally upending society for long term abstract goals must always be treated with suspicion because that is power, power corrupts, and the ground is full of the skeletons of people who died due to the dreams of despots. What they advertised as concern over some abstract ideal (justice, equality, nation, etc) rapidly became a mere tool to enter and stay in power.

[SideburnsOfDoom]

https://rationalwiki.org/wiki/Roy_Spencer

> Dr. Roy Spencer, Ph.D.[3] is a climatologist at the University of Alabama in Huntsville and a crank with a major persecution complex. His favored form of pseudoscience is global warming denial, though he has also become known as a proponent of Intelligent Design.

[hotpotamus]

Why are you linking to one guy's wordpress blog? I think this is the kind of research that might take more than one person. And is his data only coming from satellites? Wouldn't it make more sense to get a variety of sensor data?

[upsidesinclude]

This statement is just false.

As of yet, the outcomes have been on the lower end of modeling, i.e. less severe, until the models are revised to be more conservative in their estimates. Convenient because then the models can come back with elevated outcomes by comparison to the predicted average. Ah! See scientism at work?

It's the persistent, politically motivated science that causes the hesitancy and disbelief