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Uncounted emissions

December 20, 2023 By EarthWise Leave a Comment

Most countries around the world have pledged to cut their carbon emissions to try to reduce the effects of climate change.  The extent to which countries are meeting their emission reduction goals has been the primary way of keeping score on their efforts.  But there is a major problem with this scorekeeping system: exporting fossil fuels does not count as part of a country’s contributions to emissions.

Exports of fossil fuel are the driving force of fossil fuel expansion around the world and a significant fraction of those exports come from powerful and wealthy nations that are essential to the effort to reduce carbon emissions.

Our own country is a prime example.  The U.S. is working to cut back its carbon emissions.  The Inflation Reduction Act is driving the reduction of domestic use of oil, gas, and coal and is providing subsidies for the use of heat pumps and the buildout of EV charging networks.  However, at the same time, U.S. production of fossil fuels is booming, driving substantial profits for that industry.  The result is that much of the expanding supply of fossil fuels is headed overseas.

American liquified natural gas exports are growing rapidly.  Estimates are that by 2030, United States LNG exports will be responsible for more greenhouse gas emissions than every house, car, and factory in the European Union.  And, according to the UN emissions accounting system, none of those emissions will be attributed to the United States. 

The situation is rather disastrous.  Countries use this loophole to claim they are doing their part to reduce emissions, but the world is continuing to suffer the consequences.

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Uncounted Emissions: The Hidden Cost of Fossil Fuel Exports

Photo, posted January 9, 2015, courtesy of Bernard Spragg via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

The Problem Of Gas Flaring | Earth Wise

January 9, 2020 By EarthWise Leave a Comment

Gas flaring

Gas flaring is the burning off of flammable gas released by pressure relief values during over-pressuring of plant equipment at petroleum refineries, chemical plants, natural gas processing plants, and a variety of oil and gas production plants.  Flaring is also used during plant startups and shutdowns.

A new study by Rice University concludes that reducing gas flaring would benefit both the environment and the economy. Flaring and venting of gas in West Texas’s Permian Basin and certain other parts of the U.S. have reached levels that the intended result of burning gas to allow oil extraction now looks more like wasting one resource to produce another.

At current rates, enough gas is flared in the Permian Basin to yield nearly 5 million metric tons of exportable liquid natural gas if it was captured and liquified.  At these rates, the wasted gas could fill the largest sized LNG carrier every ten days.  If that liquified natural gas was exported to China and used in a power plant, it would displace 440,000 metric tons of coal burned to generate electricity.

Burning natural gas to heat homes, power industrial processes, or generate electricity all emit carbon dioxide, but at least these things also perform valuable functions. Flaring gas produces CO2 as well as other combustion products but doesn’t even do anything useful.  The venting of unburned gas, which also takes place with some frequency, is even worse since it is dumping methane directly into the atmosphere.

Across the U.S., some 14.1 billion cubic meters of natural gas was flared in 2018, equivalent to nearly 9 million metric tons per year of LNG.  In energy terms, that is equivalent to more than one-third of the total LNG volume U.S. firms actually exported that year.

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Reducing gas flaring will benefit economy and environment, says Baker Institute expert

Photo courtesy of Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

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