Carbon dioxide levels hitting historic high is the final wake-up

At 415 ppm, carbon dioxide level is at highest ever in human history

Earth's carbon dioxide levels exceed highest point in human history

A Graphical History of Atmospheric CO2 Levels Over Time

Just how 'Sapiens' in the world of high CO2 concentrations?

Analysis: Growth of Chinese fossil CO2 emissions drives new global

It's gonna get hot: Atmospheric carbon dioxide over the past

Analysis: Growth of Chinese fossil CO2 emissions drives new global

Carbon dioxide emission

Carbon dioxide at Mauna Loa reaches new record high at 417 ppm

Carbon dioxide now at record levels not seen in over 4 million

Climate change continued its relentless march': 2020 on track to

What Earth was like last time CO2 levels were as high as today

Revealed: World's CO2 emissions set to rise by about 1 per cent to