McKibben's book ignited the modern environmental movement. Now he's acknowledged as the godfather of a worldwide campaign.

ASSISI, Italy — As Pope Francis entered his third week in a hospital battling pneumonia, hundreds of pilgrims continued to ...

Ukrainian President Volodymyr Zelenskyy called for the creation of an "armed forces of Europe" to guard against Russia, appearing to suggest that the United States may no longer come to the ...