Executive summary The Lancet Countdown is an international collaboration that
independently monitors the health consequences of a changing climate. Publishing …

The global sediment cycle is a fundamental feature of the Earth system, balancing
competing factors such as orogeny, physical–chemical erosion and human action. In this …

In recent decades, the warming in the Arctic has been much faster than in the rest of the
world, a phenomenon known as Arctic amplification. Numerous studies report that the Arctic …

Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of
scientific evidence for climate negotiations taking place under the United Nations …

2 Chapter 2 assesses observed large-scale changes in climate system drivers, key climate
indicators and 3 principal modes of variability. Chapter 3 considers model performance and …

Climate projections by the fossil fuel industry have never been assessed. On the basis of
company records, we quantitatively evaluated all available global warming projections …

The extension of the ERA5 reanalysis back to 1950 supplements the previously published
segment covering 1979 to the present. It features the assimilation of additional conventional …

Quantifying rates of climate change in mountain regions is of considerable interest, not least
because mountains are viewed as climate “hotspots” where change can anticipate or …

Improved knowledge of glacial-to-interglacial global temperature change yields Charney
(fast-feedback) equilibrium climate sensitivity 1.2±0.3° C (2σ) per W/m2, which is 4.8° C±1.2° …

Towards the end of June 2021, temperature records were broken by several degrees
Celsius in several cities in the Pacific Northwest areas of the US and Canada, leading to …