Global warming: Carbon dioxide reaches another record level
Climate Change: Atmospheric Carbon Dioxide
What is climate change? A really simple guide - BBC News
Hawaii observatory records highest CO2 levels in human history
Carbon Dioxide in Atmosphere Hits Record High Despite Pandemic Dip - The New York Times
RealClimate: The global CO2 rise: the facts, Exxon and the favorite denial tricks
Breach of key global warming threshold 'inevitable' as carbon emissions hit record high
Copernicus: 2023 is the hottest year on record, with global temperatures close to the 1.5°C limit
Climate Change: Atmospheric Carbon Dioxide
CO2 concentrations hit new record despite Covid-19 curbs last year: UN - Hindustan Times
Carbon dioxide reaches a record level despite COVID-19's drastic impact