By Michelle Nichols UNITED NATIONS, Jan 29 (Reuters) - Global problems will not be solved by one power "calling the shots" or ...

I was already busy enough for the past 15 years reporting on and becoming a nonviolent direct-action activist in the climate movement, resulting in more than a dozen arrests and ongoing organizing.

During a sold-out appearance in London, former President Barack Obama delivered sharp commentary on political power, warning that the world’s biggest issues often stem from leaders who refuse to move ...