World will miss Paris climate target as nitrous oxide rises, report says
By Valerie Volcovici
WASHINGTON, Oct 31 (Reuters) -Failing to curb emissions of nitrous oxide will make it impossible to meet the main goal of the Paris climate agreement to keep global warming to 1.5 degrees Celsius, according to the first major global assessment of the pollutant released on Thursday.
WHY IT'S IMPORTANT
Nitrous oxide is the third most prevalent greenhouse gas and the worst ozone-depleting gas.
The Global Nitrous Oxide Assessment (N2O) report is similar to the 2021 Global Methane Assessment, which showed that human-caused methane emissions can be reduced by up to 45% this decade and laid the groundwork for 150 countries to commit to the Global Methane Pledge to curb those emissions by 30% by 2030.
BY THE NUMBERS
Nitrous oxide emissions, driven primarily by the agricultural use of synthetic fertilizers and manure, have increased globally by 40% since 1980, and are on pace to rise 30% over 2020 levels by 2050, the report said.
Taking global action to reduce emissions of nitrous oxide (N2O) could avoid the equivalent of up to 235 billion metric tons of carbon dioxide emissions by 2100, it said.
A U.S. State Department official told Reuters earlier this year that slashing N2O emissions from production of fertilizers or the production of materials like nylon is cheap, costing as little as $10 per metric ton through projects using the voluntary carbon offset market.
KEY QUOTE
"Ambitious action to reduce nitrous oxide emissions could move the world closer to meeting a wide range of global climate, ozone and other environmental and human health goals," said the assessment, published by the Climate and Clean Air Coalition of over 180 governments, NGOs, and international organizations.
CONTEXT
U.S. officials also met with Chinese counterparts to discuss cooperating on slashing N2O emissions. The countries are the biggest emitters of the greenhouse gas.
Reporting by Valerie Volcovici; Editing by Sonali Paul
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