The International Panel on Climate Change’s (IPCC) report “Climate Change 2021: the Physical Science Basis” is described by United Nations Secretary General António Guterres as a “code red for humanity.” It is a centerpiece of the global climate summit that opened Monday in Glasgow, Scotland. Some 30,000 people from around the world are braving COVID-19 to gather for what is described as an historic and urgent mission.

Regulators at the U.S. Food and Drug Administration on Friday granted emergency authorization to Pfizer’s COVID-19 vaccine for 5- to 11-year-olds, a step that means kid-sized doses can begin shipping to health care providers across the country. The Centers for Disease Control’s panel of vaccine experts is scheduled to meet Tuesday to discuss guidelines for the vaccine’s use in the younger age group.