In blow to climate, coal plants emitted more than ever in 2018

Global energy experts released grim findings Monday, saying that not only are planet-warming carbon-dioxide emissions still increasing, but the world’s growing thirst for energy has led to higher emissions from coal-fired power plants than ever before.

Energy demand around the world grew by 2.3 percent over the past year, marking the most rapid increase in a decade, according to the report from the International Energy Agency. To meet that demand, largely fueled by a booming economy, countries turned to an array of sources, including renewables.

But nothing filled the void quite like fossil fuels, which satisfied nearly 70 percent of the skyrocketing electricity demand, according to the agency, which analyzes energy trends on behalf of 30 member countries, including the United States.

In particular, a fleet of relatively young coal plants located in Asia, with decades to go on their lifetimes, led the way toward a record for emissions from coal fired power plants — exceeding 10 billion tons of carbon dioxide “for the first time,” the agency said. In Asia, “average plants are only 12 years old, decades younger than their average economic lifetime of around 40 years,” the agency found.

As a result, greenhouse-gas emissions from the use of energy — by far their largest source — surged in 2018, reaching an record high of 33.1 billion tons. Emissions showed 1.7 percent growth, well above the average since 2010. The growth in global emissions in 2018 alone was “equivalent to the total emissions from international aviation,” the body found.

Monday’s report underscores an unnerving truth about the world’s collective efforts to combat climate change: Even as renewable energy rapidly expands, many countries — including the United States and China — are nevertheless still turning to fossil fuels to satisfy ever-growing energy demand.

“Very worrisome” is how Michael Mehling, deputy director of the Center for Energy and Environmental Policy Research at the Massachusetts Institute of Technology, described Monday’s findings.

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