Questions tagged [decarbonisation]

the process of reducing or removing carbon dioxide (from energy sources). For questions specifically about [carbon-offsetting] please use that tag. For questions about [carbon-sequestration] use that tag.

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15
votes
4answers
239 views

How can I decarbonise my domestic heating, given severe physical constraints?

tl;dr : For the millions of dwellings that have significant physical constraints imposed by the physical fabric of the building, its configuration and location, that rule out heat pumps, biomass and ...
13
votes
3answers
4k views

What's the fastest growing plant by carbon density?

What is the fastest growing plant by amount of carbon stored in the wood? Bamboo is one of the fastest growing woody plants (by height), but it is mostly hollow, and so I'm not sure that it stores ...
12
votes
2answers
288 views

Where are commercial conditions for a CCS NG or coal plant most likely to emerge in the US?

The first (likely) commercial scale coal ccs plant is scheduled to begin operation at Boundary Dam in Canada by the end of the first quarter of 2014 (Estevan Mercury). A few key points about the ...
8
votes
3answers
417 views

Optimising crop yields without using fossil-fuel-manufactured fertiliser

The green revolution produced a step change in crop yields. Although nitrogen-based fertilisers have been produced without fossil fuels, a very large proportion of global fertiliser production depends ...
8
votes
1answer
234 views

Are there meaningful ways to offset greenhouse-gas emissions through carbon offset schemes?

There are various schemes offering carbon offsets. What attributes would make such a scheme meaningful? That is, where would my additional money into the scheme lead to lower global emissions than ...
8
votes
5answers
463 views

Best options for decarbonising steel production?

At the moment, a very large proportion of steel production relies on coke. So even though electric-arc furnaces are reasonably energy-efficient (Professor Julian Allwood says that the best ones run at ...
7
votes
1answer
330 views

Would “Guerilla Gardening” help combat climate change and/or be feasible/legal?

I live in Washington, and travel around the Pacific Northwest often. It's a beautiful environment, full of huge plains of grass with (virtually) nothing in them. I was wondering if, in order to help ...
7
votes
1answer
142 views

Most promising decarbonisation routes for clinker, cement and concrete?

Clinker is a major component of cement, which is a major component of concrete. Which means the production of clinker, globally, is huge. But currently, clinker production releases very large amounts ...
6
votes
1answer
83 views

How far had Iceland gone by 2012 in decarbonising its energy system?

Iceland is an unusual place. Its electricity grid is not widely connected to other countries. It has lots of geothermal energy. And it has been working hard on decarbonising (removing greenhouse gas ...
5
votes
1answer
70 views

What's the applicability of biochar?

Could the cost of biochar production ever be less than that of coal extraction? Is the thermal potential good enough? I have seen certain articles (sorry, no links) that point to its applicability ...
4
votes
2answers
99 views

Which are the 66 (65?) countries that vowed carbon neutrality by 2050 at the September 2019 UN Climate summit?

I couldn't find the list anywhere. See: Straits Times -- 66 countries vow carbon neutrality by 2050: UN Sixty-six countries have signalled their intent to achieve net zero carbon dioxide emissions ...
4
votes
1answer
58 views

Which climate change mitigations take longer than 12 years to see a net benefit?

The recent IPCC SR15 Report has garnered a lot of press coverage because it warns that we must dramatically reduce CO2 emissions by the year 2030, less than 12 years away. Global net anthropogenic ...
3
votes
4answers
160 views

Are there any unsustainable supply-chain issues unique to hydrogen fuel cell vehicles?

I was recently reading that lithium mining for electric vehicle batteries is wreaking havoc on deserts in Chile. One proposed alternative to EVs in the search for a replacement for petroleum-fueled ...
3
votes
2answers
175 views

What is the relationship between decarbonisation and sustainability?

What are the sound reasons (let's put aside the unsound reasons) why decarbonisation takes us further down the road to sustainability; and what real-world circumstances might mean that some specific ...
3
votes
3answers
118 views

Direct Electrical Heating

For a college project, I'm looking to learn about direct electrical and biomass heating as a means of decarbonization of our college campus? Where can I learn about these? Searching for direct ...
2
votes
2answers
73 views

How can I separate carbon monoxide from wood gas?

I am thinking about using open source wiki designs from allpowerlabs to construct a wood gas generator. The motivation came from experiencing a 10 day power outage after super storm Sandy. The ...
2
votes
2answers
84 views

Why not use scarce California water for almond milk?

Many argue that we should not drink almond milk as it uses scarce water. (e.g. https://www.ethicalconsumer.org/food-drink/shopping-guide/soya-non-dairy-milk). However given that consuming almond milk ...
2
votes
2answers
85 views

Electric cars and grid power capacity

The UK has a target to be carbon-neutral by 2050: As we can see in the image large cuts across all type of CO2 emissions are required. This article by the BBC suggests a number of ways in which ...
2
votes
3answers
133 views

Is Hygenic Earth Energy feasible?

This company: https://proton.energy/ Is trying to inject oxygen into old oil wells for it to combust and extract only hydrogen using steam reforming and a filter. Making steam reforming happen ...
1
vote
3answers
94 views

Why do most car manufacturers prefer electric batteries over hydrogen fuel cells?

Is this due to cost, or infrastructure, or path dependency, or incentives? I understand that batteries are more efficient (1) - but this does not take into account the quantity of rare materials ...
1
vote
2answers
102 views

Shortcut carbon emission trading by buying and sinking coal

Carbon emission trading is supposed to use market mechanisms to make carbon-intense processes less attractive. Unfortunately, the EU market is flooded with emission certificates, such that the ...