That publication, according to Guterres, represents"a dismal litany of humanity's failure to tackle climate disruption."Since greenhouse gas concentrations hit a new global high in 2020, reaching 413.2 parts per million, real-time data from monitoring sites including Mauna Loa in Hawaii confirm the rising trend of CO2, methane, and nitrous oxide continued in 2021.
Ocean heating continued as well, with the heat content in 2021 marking the highest on record."It is expected that it will continue to warm in the future—a change which is irreversible on centennial to millennial timescales," the report warns. "The heat trapped by human-induced greenhouse gases will warm the planet for many generations to come," Taalas continued."Sea level rise, ocean heat, and acidification will continue for hundreds of years unless means to remove carbon from the atmosphere are invented."
Despite investments made in disaster preparedness thus far,"much more needs to be done," said Taalas,"as we are seeing with the drought emergency unfolding in the Horn of Africa, the recent deadly flooding in South Africa, and the extreme heat in India and Pakistan."
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