According to AFP, the IPCC draft details at least 12 potential tipping points. The worst is yet to come, affecting our childrens and grandchildrens lives much more than our own, the report says. The reportmay be subject to minor changes in the coming months as the IPCC shifts its focus to a key executive summary for policymakers. It says that with 1.1C of warming above pre-industrial levels clocked so far, the climate is already changing. A decade ago, scientists believed that limiting global warming to 2C above mid-19th-century levels would be enough to safeguard the future. That goal is enshrined in the 2015 Paris agreement, adopted by nearly 200 nations who vowed to collectively cap warming at well below 2C and 1.5C if possible. On current trends the world is heading for 3C at best. Earlier models predicted that Earth-altering climate change was not likely before 2100. But the UN draft report says prolonged warming even beyond 1.5C could produce progressively serious, centuries-long and, in some cases, irreversible consequences.