Ahead of the COP26 summit, the United Nations said on Monday that atmospheric concentrations of greenhouse gases reached record levels last year
The UN’s World Meteorological Organisation (WMO) said that if greenhouse gas emissions continue to rise the world would face more extreme weather conditions.
The pandemic has triggered a temporary decline in new emissions, but the WMO said it has not affected atmospheric levels of greenhouse gases.
The organisation’s Greenhouse Gas Bulletin said the annual rate of increase last year was above the yearly average between 2011 and 2020 — and the trend continued in 2021.
“The Greenhouse Gas Bulletin contains a stark, scientific message for climate change negotiators at COP26,” said WMO chief Petteri Taalas as reported by AP.
“At the current rate of increase in greenhouse gas concentrations, we will see a temperature increase by the end of this century far in excess of the Paris Agreement targets of 1.5 to two degrees Celsius above pre-industrial levels.”
Emissions in 2030 are projected to be 16% higher than in 2010, based on formal pledges so far.
The WMO also said that the Amazon rainforest, long a carbon sink, has now become a source of carbon emissions due to deforestation.
CO2 concentrations reached 413.2 parts per million (ppm) in 2020, up 2.5 ppm, and is at 149 percent of the pre-industrial level in 1750, the WMO said.
“We need to revisit our industrial, energy and transport systems and whole way of life. The needed changes are economically affordable and technically possible. There is no time to lose,” said Taalas.
From : pk.mashable.com