Questions tagged [emissions]

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How to calculate the emission factor for Spent Wash Briquette used as fuel in the sugarcane industry based on its calorific value?

In the sugarcane industry, we use Spent Wash (generated as waste in the distillation process) as fuel for stationary combustion. If we know that calorific value e.g 1650 kCal/kg for Spent Wash ...
sustainability-user's user avatar
2 votes
0 answers
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GHG emissions per company per year (carbon footprint database)

Which countries require corporations to report their GHG emissions (eg tonnes of CO2 or GWP emitted), and where can I find those numbers per company? I'm trying to find companies who do high-energy ...
Michael Altfield's user avatar
1 vote
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How to edit datesec array in edgar_v5_2015 emission files (netcdf format)?

I am using EDGAR V5 2015 emission files (edgar_v5_2015__0.1x0.1.nc) for WRF-Chem simulation. After giving the ncdump -v date,datesec edgar_v5_2015_CO_0.1x0.1.nc > ncdump.log command, I learned that ...
Ankan's user avatar
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Forest Land Remaining Forest Land, Emissions Algorithm

I'm trying to understand how CO2 emissions are calculated in the Land Use category "Forest Land Remaining Forest Land". There are several subcategories, the one with the biggest impact seems ...
Nick's user avatar
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Emission factor for Arsenic [closed]

What emission factor for natural gas boiler should be used for arsenic other than AP-42? I need to to calculate emissions from natural gas boiler. What emission factor for arsenic would be the best to ...
Manhitha Jumili's user avatar
1 vote
2 answers
204 views

Does use of hemp oil for transport fuel produce a net positive CO2e?

A Facebook post containing an image from @TheGretaEffect and actual post can be found here mentions the development of a plane build entirely of hemp products and fueled with hemp oil. I was thinking ...
Chris Rogers's user avatar
3 votes
0 answers
447 views

How to convert CO2 emission from gC/m2/day to Tonnes?

I have an ODIAC Global CO2 emission dataset. The dataset is provided in netCDF (.nc) format and the resolution of the dataset is 1x1 degree. The unit of the dataset is gC/m2/day. I need to convert it ...
Farhan Mustafa's user avatar
3 votes
1 answer
102 views

How to generate inputs for the MUNICH model from the VEIN model

MUNICH is the Model of Urban Network of Intersecting Canyons and Highways (MUNICH) (Kim et al., 2018) and VEIN is the Vehicular Emissions INventory model (Ibarra-Espinosa et al, 2018), an R package. ...
Sergio's user avatar
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What are good examples of how software helps solving today's environmental problems? [closed]

I'm collecting examples and inspiration of how existing software products or applications of any kind - non-profit or commercial - directly help solving or preventing environmental problems like GHG ...
okram's user avatar
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1 vote
2 answers
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USA and UK government report on plane emissions: 200% difference... which is right?

The report's respective ratio of 1 passenger car vs one long haul plane are 40% versus 110%: Image 1 (DEFRA): car = 171 plane = 195 (110%) Image 2 (EPA): car = 4096 plane = 1760 (40%) If the ...
bandybabboon's user avatar
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3 votes
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Spatial allocation of road emissions and unit conversion

I have a grid shapefile that has a resolution of 1km x 1km. This grid is then used to spatially allocate road emissions. My goal is to get the emissions in the unit: μg m-2 s-1(microgram per ...
meteo_96's user avatar
  • 311
3 votes
2 answers
83 views

Has the Average Volume of Volcanic Emissions Been Constant Since the Last Major Fluctuation?

Are total volcanic emissions worldwide constant, or do they rise and fall? We know there are large fluctuations on a scale of tens of millions of years, but is the total volume of emissions stable on ...
Michael Walsby's user avatar
1 vote
2 answers
480 views

WRF/Chem: Editing NetCDF (wrfchemi files) for own emissions

Does anybody here have any experience with editing wrfchemi outputs from the prep_chem utility so that I overwrite the file with my own emissions? I am knowledgeable in python, but I am not that well ...
meteo_96's user avatar
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5 votes
1 answer
243 views

If US emissions went to zero how long until global emissions reach current levels

Given the current global CO2 emission trends, if the US overnight magically went to zero emissions (without affecting worldwide emissions), how many years until global CO2 emissions return to exactly ...
RobC's user avatar
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0 answers
151 views

How do I generate the emission sources for calpuff (SRC)?

I have compiled Calpuff and mmif, hence Calmet it is not necessary because I create the Calmet output from WRF using mmif. Now I only need to create the emission inputs files. According to calpuff.inp,...
Sergio's user avatar
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2 votes
1 answer
173 views

Greenhouse gas emissions from wildfires in California

According to the California Air Resources Board, in 2016 (the most recent year for which figures appear to available) California's total greenhouse gas emissions were 430 million metric tons CO2 ...
njuffa's user avatar
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4 votes
1 answer
232 views

How to speciate EDGAR emissions for CBMZ?

I have an EDGAR emissions data-set. I would like to speciate the VOC emissions for CBMZ mechanism. Could anybody help? thanks
Sergio's user avatar
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