17 August 2021
Dr. Trevor Hancock
699 words
If you have used the Tsawassen ferry terminal this past week, chances are you will have seen a large billboard asking “How healthy is natural gas?” and pointing you to a website – unnaturalgas.org. The billboard and website are the work of the Canadian Association of Nurses for the Environment (CANE) and the Canadian Association of Physicians for the Environment (CAPE); I am proud to say that some 30 years ago I was one of three co-founders of CAPE and for some years was Chair of the Board.
The billboard is part of their campaign to raise concerns about the health effects of so called ‘natural gas’. Interestingly, attaching the term ‘natural’ to gas seems to have resulted from the fact that originally much of the gas used as fuel in the 19th and early 20th centuries – think of Victorian gas-lit streets and parlours – was manufactured by ‘gasifying’ coal. As a child growing up near London, I can recall the local ‘gasometer’ where this gas was stored – and I can remember the smell.
In contrast to manufactured gas, ‘natural gas’ – which was known of centuries ago – was found as a naturally occurring substance underground. But it did not begin to be widely exploited until the 20th century, eventually displacing manufactured gas.
Of course the term ‘natural’ was a boon to those marketing gas; attaching the word ‘natural’ to a product always makes it sound better – wholesome, good for you. But calling something natural doesn’t make it good; arsenic and mercury are natural, but also dangerous, harmful to our health.
In reality, natural gas is just another fossil fuel, as natural as coal or oil, although it burns more cleanly and with lower greenhouse gas (GHG) emissions. But it is 95 percent methane, and methane has about 80 times the climate changing potential of carbon dioxide.
So while it is not a problem when burned because that destroys the methane, creating mainly carbon dioxide and water, it is a big problem if it is unintentionally released during its production, processing, storage and transportation, so-called fugitive emissions.
In fact, the latest report of the Intergovernmental Panel on Climate Change, released on August 9th, drew particular attention to methane, with the Chair of the Working Group that wrote the report, Panmao Zhai, noting “limiting other greenhouse gases and air pollutants, especially methane, could have benefits both for health and the climate.”
Here in BC, according to the governments own GHG Inventory, fugitive emissions from the oil, coal and gas industries released the equivalent of 4.3 million tonnes of CO2 in 2018, more than 6 percent of all emissions; three quarters of those fugitive emissions came from the gas sector. But a July 2021 article in Environmental Science and Technology by two Carleton University scientists suggested the emissions from the oil and gas sector in northern BC are really about double what is being reported.
Moreover, around 70 percent of the gas Canada produced in 2018, and around 70 percent of our gas reserves, are ‘unconventional’ – tight gas, shale gas, or coalbed methane – according to a January 2020 report from CAPE on the health and climate impacts of fracked gas. That means they need unconventional extraction, namely fracking – and there is nothing natural or healthy about the fracking process.
So when you hear government and industry talk about liquefied natural gas (LNG), you should do an edit in your head – its actually liquefied fracked gas (LFG). Fracked gas, as CAPE and CANE note, “is a health hazard — for families in BC who live beside the LNG-fracking industry that produces it, for people who burn it in their homes, and for the climate change that is devastating our planet.”
CAPE and CANE are calling for a moratorium on fracking expansion; support for a just transition for workers moving in to the new clean-energy economy; investments in zero emissions buildings and the banning of natural gas hook-ups in all new buildings by 2023; and the ending of all fossil fuel subsidies.
You can learn more at the Unnatural Gas website mentioned earlier, where you will also find a link to enable you to sign on to their letter to Premier Horgan.
© Trevor Hancock, 2021
Dr. Trevor Hancock is a retired professor and senior scholar at the
University of Victoria’s School of Public Health and Social Policy
Dr. Trevor Hancock - Healthy people, healthy communities, a healthy planet 