In my opinion, Time Magazine has made an excellent choice for their "Person of the Year" for 2019. They chose young climate activist Greta Thunberg. They write:
Meaningful change rarely happens without the galvanizing force of influential individuals, and in 2019, the earth’s existential crisis found one in Greta Thunberg. Marshaling “Fridays for Future” protests throughout Europe; thundering, “How dare you!” at the world’s most powerful leaders in her viral U.N. speech; leading some 7 million climate strikers across the world in September and tens of thousands more in Madrid in early December, Thunberg has become the biggest voice on the biggest issue facing the planet—and the avatar of a broader generational shift in our culture that is playing out everywhere from the campuses of Hong Kong to the halls of Congress in Washington. . . .
For sounding the alarm about humanity’s predatory relationship with the only home we have, for bringing to a fragmented world a voice that transcends backgrounds and borders, for showing us all what it might look like when a new generation leads, Greta Thunberg is TIME’s 2019 Person of the Year