Climate change evidence

There's a great deal of evidence to show that temperatures have been rising since the dawn of the industrial revolution, and that many parts of the world have experienced an increase in extreme weather events and unusual seasonal conditions.

Rather than getting bogged down in the overwhelming media commentary and scientific literature, I have highlighted key authorities below.

Trustworthy Authorities and Resources

The Intergovernmental Panel on Climate Change (IPCC) compiles the most complete and authoritative compendia of human knowledge on climate change. Its 6th Assessment Report was released in 2021. In addition, it produces special reports on topics including including: Global Warming of 1.5C, Climate Change and Land , The Ocean and Cryosphere in a Changing Climate.

The World Meteorological Association (WMO) issues an annual Statement on the State of the Global Climate which contribute to UNFCCC negotiations; these statements indicate a clear acceleration of the global impacts of climate change.

The United Nations Office for Disaster Risk Reduction's (UNDRR's) biennial Global Assessment Report highlights the growing risk of extreme events, along with the high cost of vulnerability and interrelated cycles of disasters and poverty.

Climate-related issues dominated all of the World Economic Forum's Global Risks Report - a survey of 1,000 experts from government, business, academia, and non-governmental organisations. Notably, it ranks climate action failure the greatest risk in terms of impact, and extreme weather the greatest risk in terms of livelihood.