Last year was the world's fifth hottest on record, while levels of planet-warming carbon dioxide and methane in the atmosphere hit new highs in 2021, European Union scientists said. The EU's Copernicus Climate Change Service (C3S) said in a report on Monday that the last seven years were the world's warmest "by a clear margin" in records dating back to 1850 and the average global temperature in 2021 was 1.1-1.2C above 1850-1900 levels. The hottest years on record were 2020 and 2016. Countries committed under the 2015 Paris Agreement to try to limit global temperature rise to 1.5C, the level scientists say would avoid its worst impacts. That would require emissions to roughly halve by 2030, but so far they have charged higher. As greenhouse gas emissions change the planet's...
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