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Last year was one of three warmest on record, researchers find

In 2019, global mean sea level set a new record for the eighth year running, reaching 87.6mm above the 1993 average when satellite measurements began, with an annual average increase of 6.1mm from 2018, the report said.

Greenhouse gas emissions, which contribute to climate change and pollution, increased. Carbon dioxide emissions rose by 2.5 parts per million (ppm), nitrous oxide by 1 part per billion (ppb) and methane by 9.2 parts per billion, the report said.


“A number of extreme events, such as wildfires, heatwaves and droughts, have at least part of their root linked to the rise in global temperature,” said Robert Dunn from the UK’s Met Office, which contributed to the report.

“The rise in global temperature is linked to another climate indicator: the ongoing rise in emissions of greenhouse gases, notably carbon dioxide, nitrous oxide and methane.”

Pressure is building for governments to do more to limit emissions to maximise the chances of capping a rise in average global temperatures at 1.5 degrees, a goal enshrined in the 2015 Paris climate agreement.


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