After PresidentDonald Trumpmocked heron Twitter this week, former First LadyMichelle Obamahad some encouraging words for 16-year-old climate activistGreta Thunberg.
“Don’t let anyone dim your light,” Obama, 55,tweeted to Thunberg, who on Wednesday was namedTIME’s “Person of the Year.”
“Like the girls I’ve met in Vietnam and all over the world, you have so much to offer us all,” Obama continued. “Ignore the doubters and know that millions of people are cheering you on.”
Finnbarr Webster/Getty; Hau Dinh/AP/Shutterstock

“Greta must work on her Anger Management problem, then go to a good old fashioned movie with a friend!” he wrote. “Chill Greta, Chill!”
Obamahas been in Vietnam this weekwithTodayco-hostJenna Bush Hagerand actressJulia Robertspromoting young women’s education, meeting with local educators and hearing stories from girls who are pursuing their schooling.
On her trip to Asia this week, Obama said the education mission is “my life’s work now … to keep traveling the world to show what happens when we give a girl an education.”
“Her rise and influence has been really extraordinary,” Felsenthal said. “She was a solo protester with a hand-painted sign 14 months ago. She’s now led millions of people around the world, 150 countries, to act on behalf of the planet.”
Greta Thunberg.EVGENIA ARBUGAEVA FOR TIME

It isn’t the first time President Trump has gone after the teen.
Earlier this year, he sarcastically tweeted that Thunberg “seems like a very happy young girl looking forward to a bright and wonderful future” in response to a video of the teenage climate activist chastising world leaders for their lacking effort on climate change.
Similar to her subtle response on Thursday, Thunberg changed her Twitter bio at the time to read “a very happy young girl looking forward to a bright and wonderful future.”
President Trump hasfaced backlashon Twitter for attacking Thunberg.
Last year, she began “striking” from school to raise awareness about climate change. That has inspired numerous other such protests.
“I think most people are still very unaware of how big this crisis is,” Thunbergtold PEOPLE earlier this year. “Right now, I have a lot of people listening to what I am saying,” she said then, “so I am using that platform to try to achieve a change.”
She also sent out multiple tweets Thursday defending her actions as an climate activist against claims that she’s a political figure.
“If anyone thinks that what I and the science are saying is advocating for a political view – then that says more about that person than about me,” she wrote in one. “That being said – some are certainly failing more than others.”
source: people.com