Climate pledges built on flawed emissions data, Post investigation finds - Washington Post - 0 views
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An examination of 196 country reports reveals a giant gap between what nations declare their emissions to be versus the greenhouse gases they are sending into the atmosphere. The gap ranges from at least 8.5 billion to as high as 13.3 billion tons a year of underreported emissions — big enough to move the needle on how much the Earth will warm.
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the data the world is relying on is inaccurate
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The gap comprises vast amounts of missing carbon dioxide and methane emissions as well as smaller amounts of powerful synthetic gases. It is the result of questionably drawn rules, incomplete reporting in some countries and apparently willful mistakes in others — and the fact that in some cases, humanity’s full impacts on the planet are not even required to be reported.
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59 percent of the gap stems from how countries account for emissions from land, a unique sector in that it can both help and harm the climate. Land can draw in carbon as plants grow and soils store it away — or it can all go back up into the atmosphere as forests are logged or burn and as peat-rich bogs are drained and start to emit large amounts of carbon dioxide
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methane emissions comprise a second major portion of the missing greenhouse gases in the U.N. database. Independent scientific data sets show between 57 million and 76 million tons more of human-caused methane emissions hitting the atmosphere than U.N. country reports do. That converts to between 1.6 billion and 2.1 billion tons of carbon dioxide-equivalent emissions
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countries are undercounting methane of all kinds: in the oil and gas sector, where it leaks from pipelines and other sources; in agriculture, where it wafts upward from the burps and waste of cows and other ruminant animals; and in human waste, where landfills are a major source
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Data from the International Energy Agency (IEA) lists Russia as the world’s top oil and gas methane emitter, but that’s not what Russia reports to the United Nations. Its official numbers fall millions of tons shy of what independent scientific analyses show, a Post investigation found. Many oil and gas producers in the Persian Gulf region, such as the United Arab Emirates and Qatar, also report very small levels of oil and gas methane emission that don’t line up with other scientific data sets.
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fluorinated gases, which are exclusively human-made, also are underreported significantly. Known as “F-gases,” they are used in air conditioning, refrigeration and the electricity industry. But The Post found that dozens of countries don’t report these emissions at all — a major shortcoming since some of these potent greenhouse gases are a growing part of the world’s climate problem.
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Vietnamese officials said more recent reports assume fluorinated gases do not escape from air conditioning and refrigeration systems. But they do: U.S. supermarkets lose an average of 25 percent of their fluorinated refrigerants each year.
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Some countries with lagging data have significant carbon footprints: Iran, one of the top 10 largest emitters, has not filed an inventory since 2010; Qatar, a large natural gas producer, last revealed its emissions in 2007; and Algeria, a major oil and gas producer, in 2000.
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more than 1 billion tons of emissions from international air travel and shipping, for which no country takes responsibility.
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emission reports are so unwieldy that the United Nations does not have a complete database to track country emissions. Some 45 countries have not reported any new greenhouse gas numbers since 2009
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While the Paris agreement calls for a more transparent system by the end of 2024, it could take until 2030 to get to robust reporting — an eternity compared with the tight time frame the world needs to get it right. The world has already warmed at least 1.1 degrees Celsius (2 degrees Fahrenheit) compared with preindustrial levels, leaving a very narrow path to avoid crossing the dangerous warming thresholds of 1.5 and 2 degrees Celsius.
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In one of the most striking cases, Ciais’s study found that methane leakage from fossil fuel operations in the oil states of the Persian Gulf could be as much as seven times more than what they officially report.
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On the one hand, the Earth is working harder to mitigate carbon pollution than we may realize. On the other hand, droughts, wildfires and other major disturbances tied to climate change quickly can release much of this carbon again.
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The bulk of emissions comes from burning fossil fuels, which can be tallied with reasonable precision. But more than a third are not easily tracked, including the emissions that arise when forests are chopped down or lost to fire, peatlands are drained, or excess fertilizer is spread on agricultural fields.
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the U.N. reporting guidelines don’t currently require any atmospheric or satellite measurements, known as a “top-down” approach. Rather, the guidelines ask scientific bookkeepers in each country to quantify levels of a particular activity. This includes the number of cows, whose burps makes up 4 percent of total greenhouse gases, the amount of fertilizer used or how much peatland was converted to cropland in a given year. Then, countries multiply those units by an “emissions factor” — an estimate of how much gas each activity produces — to determine a total for everything from belching cows to tailpipe emissions.
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“garbage in, garbage out.”
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Malaysia’s skewed data vividly illustrates the high stakes countries face as they confront the growing pressure to reduce emissions while managing the very real economic consequences that process triggers.In the past decade, some in the Southeast Asian nation have gone to great lengths to counter the scientific conclusion that its oil palm industry is releasing huge amounts of carbon
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across Sarawak and other regions of Malaysia, 4,000 square miles of these forests — close to the size of Connecticut — have been drained in recent decades. Much of this land is sown with plantations for palm oil, commonly used in products ranging from biofuels to processed foods, soaps and makeup
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When peatland is drained, it releases a rapid pulse of carbon dioxide and other greenhouse gases as the once-waterlogged plants’ remains degrade with the sudden exposure to air. Emissions then continue for decades, until all the peat is gone.
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Malaysia’s government has downplayed the palm oil industry’s climate impact across several categories in its U.N. reports.In 2016, Malaysia claimed that it had not converted a single acre to cropland.“This is patently untrue,”
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“When you walk over peatlands, your feet sink down into thousands of years of carbon,” said Hurowitz, the Mighty Earth chief executive. “Sarawak has sent its peatland destruction advocates to scientific, government and corporate events for years to present a wildly distorted picture of destroying these ultrarich carbon ecosystems.”