Climate Change Mega Thread

[cyruslosco66]

i will as long as you keep using air and water hypocrite

[JagXKR]

i will as long as you keep using air and water

[cyruslosco66]

what ? i want clean air and water he wants oil . its not rocket science lol . of course i dont really want my lil pal to not breath or drink water but its as dumb to say both things when i no choice .

[ckil]

what ? i want clean air and water he wants oil . its not rocket science lol . of course i dont really want my lil pal to not breath or drink water but its as dumb to say both things when i no choice .

Can you try and post something in an English we can all understand please?

[ckil]

Lets go Green and screw with the environment more than conventional sources of energy.



SCIENTISTS UNEARTH A CONSEQUENCE OF SOLAR PANELS IN THE SAHARA


"While the black surfaces of solar panels absorb most of the sunlight that reaches them, only a fraction (around 15%) of that incoming energy gets converted to electricity. The rest is returned to the environment as heat."

Covering 20% of the Sahara with solar farms raises local temperatures in the desert by 1.5°C according to our model. At 50% coverage, the temperature increase is 2.5°C. This warming is eventually spread around the globe by the atmosphere and ocean movement, raising the world’s average temperature by 0.16°C for 20% coverage, and 0.39°C for 50% coverage. The global temperature shift is not uniform though – the polar regions would warm more than the tropics, increasing sea ice loss in the Arctic. This could further accelerate warming, as melting sea ice exposes dark water which absorbs much more solar energy.

This massive new heat source in the Sahara reorganizes global air and ocean circulation, affecting precipitation patterns around the world. The narrow band of heavy rainfall in the tropics, which accounts for more than 30% of global precipitation and supports the rainforests of the Amazon and Congo Basin, shifts northward in our simulations. For the Amazon region, this causes droughts as less moisture arrives from the ocean. Roughly the same amount of additional rainfall that falls over the Sahara due to the surface-darkening effects of solar panels is lost from the Amazon. The model also predicts more frequent tropical cyclones hitting North American and East Asian coasts.

Some important processes are still missing from our model, such as dust blown from large deserts. Saharan dust, carried on the wind, is a vital source of nutrients for the Amazon and the Atlantic Ocean. So a greener Sahara could have an even bigger global effect than our simulations suggested.

We are only beginning to understand the potential consequences of establishing massive solar farms in the world’s deserts. Solutions like this may help society transition from fossil energy, but Earth system studies like ours underscore the importance of considering the numerous coupled responses of the atmosphere, oceans, and land surface when examining their benefits and risks.

https://www.inverse.com/science/why-tur ... al-climate

[Jlabute]

Two interesting videos shining alight on the so called 97% consensus, and undue faith in Michael Mann's hockey stick.

[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.