Climate Change Mega Thread

[cyruslosco66]

by 2100 , summers might last 6 months .

https://phys.org/news/2021-03-northern- ... -year.html

[Glacier]

by 2100 , summers might last 6 months .

https://phys.org/news/2021-03-northern- ... -year.html

Define summer.

[77TA]

by 2100 , summers might last 6 months .

https://phys.org/news/2021-03-northern- ... -year.html

Or, they might not...

[cyruslosco66]

you define summer , im just reporting the news .


if you think a rebuttul to a science paper is "it might not" well then our debates wont be on equal terms and im not fond of showing off .

[77TA]

Are you debating or just reporting the news?

[cyruslosco66]

Are you debating or just reporting the news?

im reporting the news and you seem to want to debate but it cant be me as i have an iq

[77TA]

Ok got it

[Glacier]

Come clean about the cost of Net Zero: Going carbon-neutral would mean a drastic reduction in living standards, but no politician can admit it.
https://www.spiked-online.com/2021/03/1 ... f-net-zero

[Glacier]

you define summer , im just reporting the news .

This is a really good idea, and we have already done this. Here are three definitions we could use:

1) The Wawa Seasonal Index (invented by City-Data user wawa1992). It goes like this:

Winter is defined where the mean temperature averages at or below freezing.
Summer is defined where the mean temperature averages 68F/20C or above.
Spring and Fall are defined as the seasons between Winter and Summer.


2) The Zzontar Seasonal Index (invented by Castanet forum user Zzontar) defines the seasons as the following:

The last day of Winter is the last date in which the daily maximum temperature does not exceed 0°C.
The last day of Spring is the last date in which the daily minimum temperature drops to 0°C.
The first day of Fall coincides with the first frost after mid summer (after July 16th).
The first day of Winter occurs when the daily maximum temperature does not exceed 0 degrees Celsius for the first time after mid summer.


3) The Glacial Seasonal Index (invented by Yours Truly). It works like this:

Find the coldest and hottest days of the year.
Calculate the mid-mid points of this range. Point X = A/2 + (A+B)/4; Point Y = B/2 + (A+B)/4
The points in the year when the mean temperature crosses these points (X and Y) is the point at which the seasons change.


These definitions don't work for all cases, so you might have to use a different base. For example, most of Canada would not have a summer with the Wawa, so one might want to use Wawa (0,15) for cooler climates or the Zzontar (10) for warmer climates. That is to say different thresholds. The Glacial Seasonal Index will work in all cases outside of the tropics.

Let's look at Penticton for example. The climate is defined as a 30 year period ending in a year with a 0, so the most recent is 1991-2020 (it will take a few years before Environment Canada starts using it (they are currently using 1981-2010).

so let's compare Penticton's climate between 1961-1990 (old climate) and 1991-2020 (new climate)...

1) Wawa summer:
OLD = July 8 to August 15 (inclusive).
NEW = July 28 to August 21st

So that's an increase of 16 days or more than two weeks in the past 30 years!

2) Zzontar summer:
OLD = April 4 to November 16
NEW = March 27th to October 31

This seasonal index has actually decreased summer by 8 days in the past 30 years!

3) Glacial summer:

The Glacial seasons have to use 1961-1990 as a reference to show climate change, so using Penticton from this time period, the seasons are defined as:
WINTER: When the average hourly temperature drops below 2.967916667C
SUMMER : When the average hourly temperature is above 16.15841667C
FALL and SPRING are between these points.

so using the 1961-1990 reference points, SUMMER is defined as:
June 1st to September 9th

Now, using this same reference point (16.15842C), the 1991-2020 summer is now defined as: May 28th to September 13th.

THEREFORE, summer is now 6 days longer than it was 30 years ago.

[cyruslosco66]

well we should both know what the article is trying to say that winters will be shorter in time each year . and if th research on magnetic poles pans out , we may have an extra worry that could wipe us out over a period of time

[77TA]

we may have an extra worry that could wipe us out over a period of time

Or we may not.

[Jlabute]

The original article, if one could call it an article. It is 99% computer output.

https://phys.org/news/2021-03-northern- ... -year.html

https://agupubs.onlinelibrary.wiley.com ... SI-S01.pdf

It is based on models which already provide poor results, and use bad assumptions and based on RCP4.5 and RCP8.5. The majority of climate scientists have already agreed these particular RCPs are impossible or at least extremely unlikely, yet some people continue to model based on them. It's very ironic that such a report comes from P.R.China when they are the worst polluters. The worst of existing models (including CanESM2) were used to predict seasonal changes for 2050 and 2100.

So this article uses already bad RCPs, on top of bad models, on top of bad correlations and science, to make obviously bad predictions. There is a lot of reason to mistrust it.

I know Kroynon said "Or we may not". My interpretation is a "definitely will not and missed by a mile".

As for the pole reversals, no one knows what this will do if anything. There have been 183 reversals over the last 83 million years. A reversal takes thousands of years and it'll be a question of what might happen during that time. The suns poles flip too. Do certain reversals trigger volcanism? We won't get to see.

[cyruslosco66]

o2 arena add wind power


https://www.theguardian.com/environment ... n-a-breeze

[ckil]

removed

[nepal]

Unnecessarily big trucks, and powerful cars, make a mockery of EVs trying to save the planet.

https://m.youtube.com/watch?v=8vsuhfTSKM8&noapp=1

https://m.youtube.com/watch?v=iG8F28WlvQU