Human activities have caused global temperatures to increase by 1.25° C, and the current
emissions trajectory suggests that we will exceed 1.5° C in less than 10 years. Though the …

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 …

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

Our current 1.1° C warmer world is already affecting natural and human systems in Europe
(very high confidence1). Since AR5, there has been a substantial increase in detected or …

Most current climate models predict that the equatorial Pacific will evolve under greenhouse
gas–induced warming to a more El Niño-like state over the next several decades, with a …

Meeting climate mitigation goals would require transformative changes in the transport
sector (high confidence). In 2019, direct greenhouse gas (GHG) emissions from the transport …

The geography and timing of changes in water availability under climate change are of
considerable societal interest. Characterizing these changes in a robust and meaningful …

A strong atmospheric river made landfall in southwestern British Columbia, Canada on
November 14th, 2021, bringing two days of intense precipitation to the region. The resulting …

Global‐scale changes in water vapor and responses to surface temperature variability since
1979 are evaluated across a range of satellite and ground‐based observations, a reanalysis …

Precipitation is a key component of the hydrological cycle and one of the most important
variables in weather and climate studies. Accurate and reliable precipitation data are crucial …