The dismantling of U.S.A.I.D. has disrupted the global supply chain that provides a therapeutic food, leaving thousands of malnourished children at risk of dying.
Countries failed to bridge wide gaps on whether the world should limit plastic manufacturing and restrict the use of harmful plastic chemicals.
Anti-vaccine groups had sought the revival of the task force.
Astronomers had hoped to observe an atmosphere on one of the seven planets known to orbit Trappist-1, a red dwarf star. A new study found nothing to write home about.