Although we hear news about atmospheric carbon dioxide levels often, there are several other greenhouse gases which are also affecting the global climate.
One of the most potent greenhouse gases is methane which is 86 times more potent than carbon dioxide when measured over a twenty year period. Atmospheric methane is also at record levels. After a relatively stable period, it began rising in 2007.
While no definitive science report has yet been published as to the cause of the rise, I have a common sense guess. The rise of atmospheric methane began to rise with the advent of high volume hydraulic fracturing for oil and gas in the United States. Other sources of methane, such as agriculture and waste disposal, have not seen any large expansion in this timeframe.
There have been a number of measurements that have traced atmospheric methane and other VOCs to fossil fuel sources, including well pads, compressor stations, processing equipment, and pipelines. A number of studies have been published using these data. These data show that actual methane emissions are much higher than those that the industry and the EPA had estimated.
This gives even more urgency to rapidly transitioning away from fossil fuels to renewable energy. It is critical to restrict methane emissions to avoid climate tipping points, such as large scale permafrost melting and the release of methane hydrates from the cold water seas.
I am proud that our grassroots organizing managed to hold off fracking here in New York State. There is still a long way to go, but we are making progress. We won’t stop until fracking and other unconventional fossil fuels are a thing of the past.