Petteri Taalas, (R), secretary-general of the World Meteorological Organisation (WMO), sitting next to Tedros Adhanom Ghebreyesus, director general of the World Health Organisation. Photo: EPA-EFEI

Greenhouse gases in air rose again in 2017, prompting urgent climate change warning

  • Research shows the last time our planet had a similar concentration of carbon dioxide was 3-5 million years ago
Topic |   Climate change

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Petteri Taalas, (R), secretary-general of the World Meteorological Organisation (WMO), sitting next to Tedros Adhanom Ghebreyesus, director general of the World Health Organisation. Photo: EPA-EFEI
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