Concentrations of greenhouse gases, particularly CO₂ , continue to rise. The year 2019 ended with a global average temperature of 1.1°C above estimated pre-industrial averages, second only to the record set in 2016. Without the role of El Niño in the warming increase observed in 2016, 2019 would have been a record year.
Foreword -- Statement by the United Nations Secretary-General -- Key messages -- Global Climate Indicators -- Climate-related risks and impacts -- Dataset references -- List of contributors.
