Questions tagged [greenhouse-gas-emissions]

Filter by
Sorted by
Tagged with
15
votes
2answers
1k views

Which gases increase the greenhouse effect more than carbon dioxide?

Everywhere can be read that carbon dioxide increases greenhouse effect. But there are other gases having worse effect than carbon dioxide, e.g. methane. Is carbon dioxide emission the real threat, or ...
13
votes
2answers
2k views

How do I determine what my biggest personal impact on global warming is?

This question is basically a follow-up question on something EnergyNumbers mentioned in his answer to this now closed question. He wrote that together, our impact (on fighting global warming) can ...
11
votes
2answers
338 views

Could global shift toward vegetarianism be a big step in solving food, water, health, ecological, and economical crises?

Some people, like myself, made a conscious decision to exclude various animal products from their diets, believing that this is an inevitable requirement if our species intends to live on Earth ...
11
votes
1answer
1k views

What is the most environmentally-friendly fuel source (e.g. wood, coal, oils, alcohols) for campfire cooking?

When factors like emissions, renewability, and heat / energy efficiency are all taken into account, what would be the very best fuel source(s) to use for camping cooking, with sustainability and ...
9
votes
1answer
394 views

How much of the emitted CO2 is human caused

Looking at the atmospheric CO2 concentration measurements, e.g. from Mauna Loa, the table there says that the increase of CO2 concentration in the year 2012 was 2.66 ppm/yr. How many percent of this ...
9
votes
1answer
129 views

What is the share of global human CO2 emission of cargo transport by ship?

I had an argument how bad global economic trade flows really are. The question was in particular how bad worldwide transports on cargo vessels (containers, ...) are in terms of CO2 production as well ...
9
votes
1answer
2k views

How much CO2 do I cause with one Google search?

Is there any data about the CO2 emissions per individual Google search? Or are there none because Google is moving towards 100% renewable energy supply? Scope: Just the search query, no lifetime ...
8
votes
2answers
197 views

What are the greenhouse gas benefits of vegetarianism?

I'm looking for a range, or better yet, likelihood distribution, compared to: The average US meat consumer. The average world meat consumer. How significantly are those averages affected by: ...
8
votes
4answers
304 views

Is burning wood the same as letting it biodegrade from a CO2 emissions perspective?

I always thought, that burning wood, would be bad for the total CO2 in the atmosphere until I heard it being pitched as "renewable energy". Now I am slightly unsure. The logic goes like this: Wood ...
8
votes
1answer
155 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 ...
7
votes
2answers
2k views

How do atmospheric concentrations of CO2 and NOx vary by city and within cities?

What would a well ventilated port city such as Honolulu, Hawaii, USA have for the concentrations (in parts per million) of CO2 or NOx, compared to a city like Linfen, China which is the site of a ...
6
votes
4answers
4k views

Are my compost piles adding CO2 to the atmosphere by offgassing?

I make several compost piles, flip them regularly, add some additives and apply them to my crops. I often cover the piles when its rainy, will this affect the offgassing? Some of my neighbors apply ...
6
votes
2answers
199 views

How much could the US reduce its electricity demand if people moved from Texas back to Ohio?

I have a theory that I am trying to develop empirical support for. I believe that the migration of people from the Rust Belt to the Sun Belt has caused an increase in overall electricity usage and ...
6
votes
2answers
547 views

How much CO2 do those gas flame pits outside restaurants emit?

I've been noticing gas-fueled flame pit displays outside some "hip" restaurants, such as this one shown in a Portland Monthly article. I find myself reacting to them with disgust; it looks like they'...
6
votes
1answer
179 views

Can Siberia's greenhouse gas be harvested?

Russian scientists find 7,000 Siberian hills possibly filled with explosive gas. I wonder if it makes business sense to harvest these explosive gases and turn them into liquid natural gas for later ...
6
votes
1answer
97 views

What has been the greenhouse gas impact of shutting down Japanese nuclear power plants post-Fukushima?

Japan shut down virtually all nuclear power plants after the March 11, 2011 earthquake, tsunami and nuclear power plant accident. What has been the greenhouse gas impact of this decision? Have people ...
6
votes
2answers
139 views

How does the climate impact of an LNG-powered cruise ship compare to flying?

Taking the Iona as an example, it is claimed that "The cruise ship will have a reduced carbon footprint with zero sulphur and nitrogen emissions." Sulphur and nitrogen, while pollutants, are not ...
5
votes
2answers
425 views

Why is the per capita CO2 emissions so much higher in Wyoming than in the Northeast?

Per capita CO2 emissions are several times higher in the "red" states of the West and South than it is in the Northeast. I cannot imagine why. From "List of U.S. states by carbon dioxide emissions"...
5
votes
1answer
68 views

A more useful metric for greenhouse gas emissions reduction targets?

A useful metric for vehicle efficiency is miles per gallon, kilometers per liter, or liters per 100 km. The amount of gasoline used by a given vehicle can easily be understood and compared. Energy ...
4
votes
1answer
78 views

What is meant by Global-warming Potential (GWP)?

I was under the impression GWP (global-warming potential) is the measure of a gas' impact on global warming, in comparison with CO2. E.g. methane has a GWP of 86 over 20 years - Wikipedia Comparing ...
4
votes
1answer
69 views

How much increase in GHG emissions is caused by Amazon Prime?

From Wikipedia: Amazon Prime is a paid subscription service offered by Amazon that gives users access to free two-day delivery (one-day in some areas) [...] and other benefits for a monthly or ...
4
votes
1answer
49 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
1answer
51 views

With current technology, how much CO2 is emitted when making renewable power plants?

In order to make a solar panel or a wind turbine, a few basic inputs are required: labor energy water raw materials Given the current abundance of renewable resources, I assume that the first three ...
3
votes
0answers
28 views

Plane and train greenhouse emissions - comparison taking infrastructure in account or not?

In the news or various other places, we see often that train travel produces significantly less greenhouse gas than air travel, without much information about how this is calculated. For example here :...
2
votes
1answer
34 views

What information is lost when converting other air pollution into CO2e?

I'm struggling to explain the most important aspects of air pollution in a concise way. I understand CO2 is the biggest issue and long-term driver of global warming, but beyond that I'm lost. News ...
2
votes
2answers
56 views

Emissions offsets versus avoidance: can they be compared?

I'm going to be traveling from London to Toulouse next year. I could take a flight for around £100, or a train journey for £170. The emissions for the flight would be about 500kg, which would cost ...
2
votes
1answer
69 views

CO2 track of staying in huts which are supplied by helicopter

How much CO2 do we produce by sleeping on average in a hut (including breakfast and dinner)in high-altitude > 3000 m)? Let's assume that the hut offers 50 beds and that a helicopter has to supply the ...
1
vote
0answers
15 views

Is there a Life Cycle Analysis comparing natural gas and propane as heating fuels

I am choosing between natural gas and propane for a boiler. I see a discussion here where the accepted response primarily deals with the CO2 released during actual burning of the gas. I am curious ...
0
votes
0answers
55 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 ...
0
votes
2answers
62 views

Climate change, air pollutants and greenhouse gases

I am searching article since last 10 days but could not find any articles where the inter-relation between the climate change, air pollutants and greenhouse gases is clearly explained.Can you help to ...
-1
votes
0answers
45 views

Questions about Greta's speech [closed]

I heard Greta's speech. Unfortunately, I cannot understand what will happen in the future, but I understand that there is only 350 Gigatons left before it happens. Certainly, 350 Gigatonnes seems ...
-2
votes
1answer
65 views

What is the average CO2 emission for a human while debating?

I am looking to calculate the CO2 emission of an average male human while arguing/debating. It is my understanding that the amount of CO2 emitted will be based on the respiratory rate of any given ...