Sucking Carbon From Sky May Be Necessary to Cool Planet, UN Says

International efforts to combat global warming are so broken that it’s come to this: hoovering massive amounts of carbon dioxide out of the sky.

A body of scientists convened under the auspices of the United Nations is giving more weight to the idea that vacuuming vast stores of CO2 from the skies and burying it in the ground may be necessary to limit the temperature rise to the internationally agreed safe level of 3.6 degrees Fahrenheit above pre-industrial levels.