10,000-page red alert on climate change

10,000-page red alert on climate change

PARIS: Accelerating global warming is driving a rising tide of impacts that could cause profound human misery and ecological disaster, and there is only one way to avoid catastrophe: drastically reduce greenhouse gas emissions. Spread across 10,000 pages, these are the main takeaways from a trio of UN reports on climate change published in August 2021, February 2022 and on Monday.

The three tomes-each with its own roster of hundreds of authors-focus on physical science, impacts and the need to adapt, and finally how to slash carbon pollution. This will be the sixth such trilogy since the Intergovernmental Panel on Climate Change (IPCC) delivered its first report in 1990 and positioned itself as the final word on the science behind global warming. Here are five key findings from the three reports:

Beyond a doubt

Whatever climate sceptics might say, scientific evidence has removed any lingering doubt that human activity is “unequivocally” responsible for global warming, which has seen the planet heat up an average of 1.1 degrees Celsius above preindustrial levels. The atmospheric concentration of CO2 – the main driver of warming, emitted mainly by burning fossil fuels-rose at least 10 times faster between 1900 and 2019 than any time in the last