Alberta badly underestimates methane emissions


tay
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#1  Top Rated Post
The difference between official estimates and the measured results suggests the province’s energy industry could have to double its planned methane emission cuts if Alberta is to meet its promised 45 per cent reduction.

“A lot of eyes are going to be really wide when they see the comparison,” said Carleton University’s Matt Johnson, author of the study published in Environmental Science and Technology. “If we thought it was bad, it’s worse.”

Currently, industry is only required to report how much methane is released during flaring and venting. So-called fugitive emissions from equipment such as leaky valves have only been estimated.

Johnson’s study is the first to use aerial flyovers of oil and gas fields to actually measure released methane, a greenhouse gas about 30 times more powerful than carbon dioxide.

The planes made seven passes over a region of conventional oil and gas around Red Deer in central Alberta and four passes over the heavy oil centre of Lloydminster. The surveys were done over 10 days last fall.

The planes flew over thousands of wells in both areas to reduce the odds that results were distorted by unusually high releases from a few sites, said Johnson.

Researchers were able to distinguish between industrial and agricultural methane emissions by tracking trace amounts of ethane — a gas released by oil and gas wells, but not by cattle.

“That allows us to attribute it,” Johnson said.

The total measurements were compared with methane releases reported by industry and methane emissions estimated in the most recent National Pollutant Release Inventory.

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‘If we thought it was bad, it’s worse:’ Alberta badly underestimates methane emissions, new research shows | Calgary Herald
 
captain morgan
+1
#2
We totally knew... It was one of the best ongoing inside jokes going
 
Bar Sinister
#3
Gee, I wonder why that study wasn't conducted under the previous Alberta government.
 
MHz
+1
#4
The study they don't want you to look at is the one that says methane is not dangerous a greenhouse gas but inhaled it is one where just a little bit will make you stupider for life.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1136667/
 
captain morgan
#5
Quote: Originally Posted by Bar Sinister View Post

Gee, I wonder why that study wasn't conducted under the previous Alberta government.

Blame whatever ecotard study group for not nutting-up with cash in hand to get it done.
 
Hoid
#6
"The planes made seven passes ... in central Alberta and four passes over ... Lloydminster."

11 results

"The planes flew over thousands of wells in both areas to reduce the odds that results were distorted by unusually high releases from a few sites"

To reduce them from probable to likely? Is that a reduction?

Obviously there needs to be ongoing and better testing.