Greta Thunberg's speech at Youth4Climate hits hard at 'empty words and promises'
"Thirty years of blah, blah, blah," Greta Thunberg said in a speech Tuesday. "Net zero by 2025. By 2050! This is all we hear from our leaders. Words that sound great, but so far have led to no action. Our hopes and dreams drowned in their empty words and promises."