Former first lady encourages Thunberg, after she has been insulted by Trump.

Michelle Obama has expressed support for the Swedish klimaaktivist Greta Thunberg, after she was mocked on Twitter by president Donald Trump.

- don't Allow, that someone turns off or weakens your light, writes the former us first lady in a tweet to Thunberg.

- As the girls I have met in Vietnam and all over the world, have so much to give us all, goes on in the tweetet, where Michelle Obama calls on the young swede to ignore all the "doubters".

Thunberg, who has been named as the Person in 2019 by the american news magazine Time, began over a year ago its skolestrejke for the climate.

president of the UNITED states, Donald Trump, fixed Thursday, the criticism against the 16-year-old in a tweet, in which he said that Thunberg should "relax and take in the cinema".

So bloody stupid. Greta should work on his problem to deal with his anger, and afterwards see a good, old-fashioned movie with a friend. Relax Greta, relax, he wrote.

Trump was even nominated by Time as the Person, but had to see himself beaten by the young swede.

It is not the first time that AMERICA's president is after the 16-year-old teen. When Greta Thunberg made his speech at a climate summit in New York, where she railed against world leaders for not acting against climate change.

Then wrote Trump in an ironic tweet that Greta Thunberg works as "a very happy, young girl who looks forward to a bright and great future".

this week called on the brazilian president, Jair Bolsonaro, Thunberg for a "brat".

Thunberg had criticized the increasing violence against Brazil's indigenous population. Thunbergs criticism came after the two men from the Guajajara tribe in the eastern Amazon Saturday was shot and killed.

The criticism could Bolsonaro not understand, after which he called her brat and questioned the media's coverage of Thunberg.

/ritzau/