Factsheets on the Physical Science Basis (Working Group 1)

The IPCC's Physical Science Basis report assesses the physical science of climate change; including how and why climate has changed to date and is projected to change in future. The report finds that the world may warm by 1.5°C by the early 2030s, much earlier than previously estimated. It’s not good news for the Pacific. With temperatures heading above 1.5°C, Pacific communities are likely to experience increasingly devastating climate change impacts.

It was released in August 2021 and is the first Working Group report to be released in the IPCC's Sixth Assessment Report (AR6). 

These factsheets are focussed on the key findings for the Pacific and cover four key themes:

• Temperature and greenhouse gas emissions 
• Rainfall and water availability
• Ocean and coasts
• Weather and climate extremes