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Greenhouse gas emissions rose at ‘alarming’ rate last year, US data shows

by Arinze Chijioke April 7, 2023
written by Arinze Chijioke April 7, 2023
509

New US data has shown that record temperatures, devastating floods and superstorms are causing death and destruction across the planet but humans are failing to cut greenhouse gas emissions fueling the climate emergency.

The data showed that atmospheric levels of carbon dioxide (CO2), methane and nitrous oxide – the greenhouse gases emitted by human activity that are the most significant contributors to global heating – continued to increase rapidly during 2022, according to the National Oceanic and Atmospheric Administration (Noaa).

Carbon dioxide levels rose by more than two parts per million (ppm) for the 11th consecutive year: the highest sustained rate of CO2 increases since monitoring began 65 years ago. Before 2013, scientists had never recorded three consecutive years of such high CO2 growth.

According to reports, atmospheric CO2 is now 50% higher than pre-industrial levels.

Reports further showed that the 2022 methane rise was the fourth-largest since records began in 1983, following record growth in 2021 and 2022, and now stands at an average of 1,912 parts per billion (ppb). Methane is a potent greenhouse gas less abundant than CO2 but warms the Earth’s atmosphere much faster, and today is responsible for about 25% of the heat trapped by all greenhouse gases.

Read also: ‘Africa’s energy transition would require $100 billion —Report

Methane levels in the atmosphere are now more than two and a half times their pre-industrial level. The oil and gas sector is the largest industrial source of methane, which can also cause medical complications, fires and even engine failure leading helicopters to fall out of the sky.

Following a 1.25ppb rise last year, levels of nitrous oxide, the third-most significant anthropogenic greenhouse gas, are now 24% higher than pre–industrial levels.

Fossil fuel-powered vehicles (cars, buses, trucks, farm machinery) are a major source of nitrous oxide, which is harmful to human health and water sources. But the primary culprits behind rising nitrous oxide levels in recent decades have been synthetic fertilisers and livestock manure from industrialised agriculture.

“The observations collected by Noaa scientists in 2022 show that greenhouse gas emissions continue to rise at an alarming pace and will persist in the atmosphere for thousands of years,” said Rick Spinrad, the Noaa administrator.

Story was adapted from the Guardian.

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