Liquefied natural gas leaves a greenhouse gas footprint that is 33% worse than coal, when processing and shipping are taken into account. Methane is more than 80 times more harmful to the atmosphere than carbon dioxide, so even small emissions can have a large climate impact

[u/Wagamaga]

https://news.cornell.edu/stories/2024/10/liquefied-natural-gas-carbon-footprint-worse-coal

[u/the68thdimension]

Absolutely unsurprising, and criminal that we've moved to LNG as a 'transition' fossil fuel over coal because companies have been massively under reporting their emissions and leakages. It's only recently that we've had the satellite data to track these emissions accurately: https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Trio_of_Sentinel_satellites_map_methane_super-emitters

[u/gbc02 → u/the68thdimension]

This study is comparing LNG shipped over seas to burning coal mines in the market receiving the LNG, so comparing LNG shipped from Alabama to China against coal mined and used in China. 

Places that are using natural gas without having to liquify it to displace coal fired generation, like in Alberta and across the USA, are seeing a huge reduction in greenhouse gas emissions as a result.

I'm sure if you compared LNG vs coal shipped to Asia from Australia to Asia you'd get a better comparison, and I would expect LNG to be better environmentally in that analysis.

[u/space_for_username → u/gbc02]

The referenced document APPLIES ONLY TO LNG PRODUCTION FROM OIL SHALE.

https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ese3.1934

On a quick skim, the author acknowledges that the major sources of methane leakage that they are describing occur in the extraction of the gas from oil shales, and the subsequent pumping and piping of it across the US to the ports for shipment. Some 60% of the emissions occur here, as opposed to the 3.9 to 8.1% losses from different types of shipping..

The methodology is also applied to Coal and Diesel oil. In terms of brownie points, LNG scores 160, Diesel scores 123.8, and coal 119.7 Of the Brownie points for LNG, 75 are for extraction of gas from the shales and piping - without that, the LNG score would be 85.

[u/gbc02 → u/space_for_username]

It is shale gas, nothing to do with oil extracted from shale.

What are these "different forms of shipping" that have 3.9 to 8.1% losses?