RaoulDuke

These researchers from Canterbury University have come up with an idea that they say can cheaply remove 3 million tonnes of CO₂ from the air each year. And it utilises existing infrastructure.

The TLDR is that geothermal water contains CO₂, and the stations here have systems that capture and dissolve that CO₂ into the water before it's reinjected. This CO₂ rich water is heavier than the surrounding water, so it sinks to the bottom.

The heat from geothermal wells is not replenished at the speed it's taken by the stations, so eventually the water coming out isn't hot enough and new wells need to be drilled.

The scientists are suggesting that instead of simply drilling a new wells, we burn biomass from forestry to heat the warm water up the last bit. The carbon in this fuel has been gathered by the trees, and if it was released into the atmosphere it would be carbon neutral. But if you use the station's existing CO₂ capture and dissolve systems, the carbon goes underground permanently. The operation becomes a carbon sink that also enables the use of geothermal energy that would otherwise be unusable.

They say, "in terms of buying ourselves out of an emissions liability, geothermal carbon removal is one of the cheapest options out there." They compare it with the cost of switching from a petrol to electric car - US$700 for each tonne of CO₂ saved. With the existing infrastructure, they say their plan would remove CO₂ at a cost of about US$55 a tonne.

Their papers and a bunch more evidence and info is linked in the article.

I want to finally get an icon up for !newzealand , but I want you to decide between these two.

The icon will show up as a circle in some places and a square in others. Both could have some small tweaks if they're chosen.

Vote on the comments. Best score at 10pm Thursday will be the icon.

EDIT: Well that was pretty clear. The kiwi it is. Thanks to @sortofblue@lemmy.nz for the suggestion.

Video by NIWA

"An international survey of almost 22,000 adults across 29 countries found British people had the third-most enthusiastic outlook towards refugees, just behind Spain and New Zealand."

Edit: Just found the actual report by Ipsos. We are #1, not #2. Fixed the title.

Edit 2: We're also the most likely to agree that refugees make a positive contribution to our country (70%). And here's the breakdown on the central question:

The Create Post page says that it can accept videos in the html, but when I just tried to upload an mp4 I got this error:

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

Are we supposed to be able to upload videos here?

Cross-posted from: https://lemmy.nz/post/79539

Cross-posted from: https://lemmy.nz/post/79539

I almost never got search results when searching for communities. I was interested if searching for .nz worked like this post suggested, but no luck.

I've tried a bunch of different searches and realised a few things (screenshots here):

If I search for .nz, no.lastname.nz, trees@no.lastname.nz or !trees in "Communities" I get no results. If I search for [!trees@no.lastname.nz](/c/trees@no.lastname.nz), I still get no results, but the "No results" text never shows up.

But... if I search for just trees in "Communities" it shows up. And the above searches work if I set the type to "All" or "Posts". That's OK if I've got the full name and instance, but if it's just a search term like .nz, smaller communities get lost among the posts and comments.

Is there something I'm doing wrong? It's behaving the same on my computer and phone, both Firefox. I've tried logging out and logging in (by the way, it just kept ignoring my logout request so I had to delete the cookie lemmy.nz had set).