US President Donald Trump stirred up fresh outrage on social media Monday with a tweet mocking an impassioned speech made by 16-year-old activist Greta Thunberg at the UN climate summit in New York.

As young people across Canada readied to walk out of school and take part in the Global Climate Strike on Friday, one Calgary student was told that she couldn't. Liv Barton is a 10-year-old student at ...

Greta Thunberg was among four young climate activists to scold the elites gathered at the World Economic Forum for not doing enough to deal with the climate emergency and warned them that time was ...