We are guaranteed to face more dangerous and destructive extreme weather events than we are seeing today, underscoring the need to invest much more in building resilience. To put that in perspective, the world has not experienced global warming of more than 2.5 degrees C (4.5 degrees F) for more than 3 million years, a period with a very different climate system.Īt the same time, the report shows that even with stringent emissions-reduction measures, we have already baked a lot of warming into the climate system. If the world takes a carbon-intensive pathway (SSP5-8.5), global warming could climb to 3.3-5.7 degrees C (5.9-10.3 degrees F) higher than pre-industrial levels by the end of the century. Under a high-emissions scenario, the world reaches the 1.5 degrees C threshold even more quickly (2018-2037). In the scenarios studied by the IPCC, there is a more than 50% chance that the 1.5 degrees C target is reached or crossed between 20 (with a central estimate of the early 2030s). Here are five things you need to know: 1) We’re on course to reach 1.5 degrees C of warming within the next two decades. The report offers policymakers a clear-eyed view of the current state of global climate change and lays out the transformational action governments must take to avoid a calamitous future. In just a decade’s time, we’ll be looking back on today’s apocalyptic headlines thinking how stable things were back in 2021. Of course, every fraction of a degree of warming comes with more dangerous and costly consequences.
0 kommentar(er)
