The planet is dangerously close to this climate threshold. Here’s what 1.5°C really means
LA TimesThe alarm bells are loud and clear. With a global average temperature of 58.96 degrees, Earth in 2023 was within striking distance of a dangerous limit: 2.7 degrees of warming over the preindustrial period, or 1.5 degrees Celsius, according to the European Union’s Copernicus Climate Change Service. “At this point, it is really difficult to see a path to keeping warming below 1.5 degrees,” said Kristina Dahl, a principal climate scientist with the Union of Concerned Scientists. “Remember, passing this threshold as defined in the Paris Agreement is supposed to reflect when human-caused global warming consistently exceeds 1.5 degrees Celsius compared to preindustrial times,” the National Oceanic and Atmospheric Administration wrote in a recent report. At 1.5 degrees Celsius of warming, the planet would soon see about 19 inches of sea level rise, a 16% increase in hot days and an 8% decline in Northern Hemisphere snowpack, the report says.