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Arctic sea ice / Re: The 2021 melting season
« Last post by oren on Today at 07:55:43 AM »
Binntho, please do not start flame wars. We are all speculating and guessing, whether unfounded or not is up to the reader to decide. Sea ice science has a hard time catching up with reality, and the data is roo short and too much of a trend to be able to prove much about the effect of various factors. Simply state your opinion if it's different.
Policy and solutions / Re: Electric cars
« Last post by etienne on Today at 07:50:43 AM »
or tesla could overshoot growth and take half their market.  The survivors of that disaster would have no choice but to be fully EV in order to compete.
I guess China could do it. They have a huge interior market, so they can increase their production without us realizing it. The EV might be China's trump card to increase their share of the world market.
Arctic sea ice / Re: Casual 2021 melting season predictions
« Last post by miki on Today at 07:13:17 AM »
My prediction for this year is that it will be the true pre-conditioning for next year BOE.  :P
Arctic sea ice / Re: The 2021 melting season
« Last post by binntho on Today at 07:11:06 AM »
A negative AO winter tends to favour ice thickness due to compaction in the Siberian regions especially. A positive AO tends to favour more ice thickness along the CAA but thinner ice elsewhere and that was certainly the case last year.

Are these claims based on research or intuition? And if the former, do you have any links to relevant papers?

Just going on basic meteorology gy really, negative AOs bring more high pressure into play and this helps winds head towards the siberian regions hence a build up of compaction here whilst positives AO does the opposite.

So you are just guessing based on intuition. You have no evidence that negative AO causes high pressure to form in such a way that it causes compaction against the Siberian coast.

Unfounded guesswork should be indicated as such by the author.
Arctic sea ice / Re: Casual 2021 melting season predictions
« Last post by miki on Today at 07:07:44 AM »
Is 41st for real?

On this forum?
Arctic sea ice / Re: The 2021 melting season
« Last post by FredBear on Today at 06:22:02 AM »
The question that bugs me continues to be "Is smoke from Siberian fires bad or good for ice retention?"
My experience of smoke from a bonfire in the UK in cold weather is that it absorbs "all" of the direct heat from the sun, making me much colder.
The accepted view appears to be that Arctic fires are bad for sea ice retention because soot darkens the snow and adds CO2 for the greenhouse effect.
But if the smoke and CO2 is at high altitude, where temperature is naturally colder, is there a significant net reduction in solar radiation reaching the ice during the summer set against the "blanket" effect? If so, the smoke from the massive fires in the last few years would have tended to protect the residual sea ice - particularly in the later summer when lower sun angles would increase the path length for solar radiation to reach the ice.
The more Siberia and North America warm up the worse the fires are likely to be - and consequently we will see more effects in the future     .    .    ?
Arctic sea ice / Re: 2021 Sea ice area and extent data
« Last post by Juan C. García on Today at 05:46:16 AM »
[ADS NIPR VISHOP (JAXA)] Arctic Sea Ice Extent.

April 10th, 2021:
     13,155,026 km2, a drop of -91,031 km2.
     2021 is 3rd lowest on record.
     In the graph are today's 17 lowest years on range 2000-2021 (excludes 1996).
     Highlighted 2010's average, 2021 and the 5 years with daily lowest minimum:
          (2012, 2020, 2019, 2016 & 2007)

Consequences / Re: COVID-19
« Last post by Shared Humanity on Today at 04:40:29 AM »
In the US, the 7 day moving average for daily new cases has been rising slowly since hitting 55,552 on March 16. It is now 67,904.

The 7 day moving average for daily deaths continues its slow decline and now stands at 763.
The rest / Re: George Floyd murder and blowback
« Last post by vox_mundi on Today at 04:16:17 AM »
Virginia cops pepper-sprayed Black and Latino Army officer who had hands raised during traffic stop, video shows

A U.S. Army officer is suing two Virginia police officers after a December traffic stop in which the officers drew and pointed their weapons, pepper-sprayed him and used a slang term to suggest he would face execution as he purposefully held both hands aloft in attempts to defuse the situation.

In his report, included in the court filing, Windsor police officer Daniel Crocker had reported encountering a vehicle with tinted windows and without a rear license plate, describing it in radio transmissions as “eluding police” and labeling it a “high-risk traffic stop.”

According to the suit, Nazario explained at the time that he had slowed down wasn’t attempting to elude the officer but instead looking for an illuminated location “for officer safety and out of respect for the officers.”

His newly purchased Tahoe was so new that he had temporary cardboard tags displayed in both the rear and passenger windows, the suit said.

Thought Nazario’s rear plate became visible under the glare of the fuel station, the suit says Crocker and Gutierrez immediately left their squad cars and drew their weapons, attempting to extract Nazario from his SUV as he held his hands high and repeatedly asking what he had done wrong.

The footage shows Gutierrez pepper-spraying Nazario several times as the officers continue to order him to remove his seat belt and exit his vehicle.

His eyes shut in pain as he resisted the impulse to wipe them, Nazario told the officers: “I don’t even want to reach for my seatbelt – can you please…. My hands are out, can you please – look, this is really messed up,”

After Nazario eventually climbed out of the car, he was brought down with “knee strikes” as he continued to ask for a police supervisor, the lawsuit said, then struck several times and handcuffed.

The officers searched the SUV, where they found a handgun, but replaced it after determining it was legally owned.

The suit said that after questioning Nazario, the officers threatened to derail his military career "knowing the harm criminal charges would cause him" and told him they would refrain from filing charges if he would "chill and let this go."

According to the suit, the officers altered or omitted details about the stop in their subsequent reports.
Policy and solutions / Re: Electric cars
« Last post by vox_mundi on Today at 04:14:38 AM »
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