The global warming thread

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powerarmour
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Re: The global warming thread

Post by powerarmour » Mon Sep 09, 2019 3:30 pm

Tabajara wrote:
Mon Sep 09, 2019 12:41 pm
A proposal to improve conditions, for a change:
Tbh, I'm not a vegetarian, but eating less meat in general would be better for the environment.
In terms of calorie-per-acre of land, it's more efficient to grow crops than raise cattle.
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Re: The global warming thread

Post by Tabajara » Mon Sep 09, 2019 5:58 pm

powerarmour wrote:
Mon Sep 09, 2019 3:30 pm
Tabajara wrote:
Mon Sep 09, 2019 12:41 pm
A proposal to improve conditions, for a change:
Tbh, I'm not a vegetarian, but eating less meat in general would be better for the environment.
In terms of calorie-per-acre of land, it's more efficient to grow crops than raise cattle.
I agree on both counts, and I'm not a vegetarian myself.

Here goes another interesting snippet from the article:
Another alternative is to feed animals on a diet less to the liking of the archaea. This can be partially effective, says Phil Garnsworthy, who specialises in dairy cow nutrition at the University of Nottingham, so long as it continues to allow the animals to go on producing milk and meat.

“You can probably reduce methane by about 20-25% by altering diet,” he says. One study by researchers at the University of California, Davis, estimated it might be possible to reduce global methane emissions from cows by 15% by changing their diet. But Garnsworthy believes more may be possible. In the UK, he says, farmers mainly use grass-based silage.

“If you changed just to maize-based silage you might see a drop in methane production of 10%.”

The more fibre a cow eats, the more methane it produces, but adding legumes and various oils such as linseed and soya to their diet can be helpful, adds Sinclair.

“Better quality feeding makes animals more productive, and more productive animals produce less methane,” he says.
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Re: The global warming thread

Post by Tabajara » Tue Sep 10, 2019 1:32 pm

Another interesting research that shows that technology can help save nature and take us out of this problem:
Crops under solar panels can be a win-win
In dry places, photovoltaic shade can even reduce water use.
by Scott K. Johnson - Sep 5, 2019 5:40pm BRT

"Agrivoltaics" studies like the one pictured here in Massachusetts are finding many crops that pair well with solar panels.

Solar panels might seem like they’re in direct competition with plants. One is catching sunlight to do photosynthesis, the other wants to take it to push electrons. Surely Highlander rules apply, and there can be only one on a plot of land, right?

In reality, it’s not a zero-sum game. Some plants will burn in direct sun, after all, and so there are plenty of food crops that would be happy to share their space with panels. And as a new study led by the University of Arizona’s Greg Barron-Gafford shows, the combination isn’t even necessarily a compromise—there are some synergies that can bring significant benefits to a solar-agriculture
.

https://arstechnica.com/science/2019/09 ... a-win-win/

This pairing can be even better with solar panels and dams, preventing evaporation and cooling the panels at the same time. There could even be a combination of the three, agriculture islands on top of lakes, under solar panels that would feed the system with energy. Windmills can be a part of the system as well, as the power structure would be there and there would be plenty of space for tower installation.
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Re: The global warming thread

Post by powerarmour » Tue Sep 10, 2019 5:14 pm

Aquaponics is another efficient food system.
Fish and crops at the same time. :sweet:
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Re: The global warming thread

Post by Tabajara » Tue Sep 10, 2019 5:37 pm

powerarmour wrote:
Tue Sep 10, 2019 5:14 pm
Aquaponics is another efficient food system.
Fish and crops at the same time. :sweet:
Yeah, that would make the system complete, with power and distributed stations to tend to the crops and to the fish :thumbsup:
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Re: The global warming thread

Post by impar » Sat Nov 09, 2019 9:37 pm

Greetings!
What caused 11,000 scientists to declare a climate emergency?
This isn't a scientific analysis like the IPCC reports provide.

https://arstechnica.com/science/2019/11 ... emergency/
It keeps going: 1 meter sea-level rise by 2300 is now inevitable
Analyzing a longer timeline, even if we ceased emissions in 2030.

https://arstechnica.com/science/2019/11 ... er-higher/
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Re: The global warming thread

Post by impar » Thu Nov 14, 2019 12:09 am

Greetings!
A new paper concludes that hurricane damage is increasing
Replication isn't only about repeating the exact same study.

Hurricanes are fed by warm ocean waters, so it's expected that we'll see larger, more dangerous storms as the planet continues to heat up due to climate change. These storms also have a major economic impact—Katrina is thought to have knocked a full percentage off the US' GDP in 2005. As such, we might expect to see hurricane-driven economic damages to be increasing over time.

https://arstechnica.com/science/2019/11 ... ncreasing/
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Re: The global warming thread

Post by impar » Fri Dec 06, 2019 12:23 pm

Greetings!
Here’s how much global carbon emission increased this year
Annual update shows a smaller increase in 2019 compared to last year.

https://arstechnica.com/science/2019/12 ... rds-again/
Old computer models did predict climate change

One of the beliefs of climate change doubters is that computer simulations conducted decades ago didn't accurately predict current warming, so the public should be wary of the predictive power of newer models. However, it turns out that they did predict current temperatures as early as 50 years ago.

https://www.fudzilla.com/news/49925-old ... ate-change
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Re: The global warming thread

Post by impar » Fri Jan 03, 2020 12:44 pm

Greetings!
A pre-hurricane climate change analysis gets major revision after the storm
Effort had predicted half of Hurricane Florence's rainfall was due to warming.

https://arstechnica.com/science/2020/01 ... the-storm/
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Re: The global warming thread

Post by impar » Thu Jan 09, 2020 11:07 am

Greetings!
The latest generation of climate models is running hotter—here’s why
It largely comes down to their simulation of mid-latitude clouds.

https://arstechnica.com/science/2020/01 ... heres-why/
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