
Tonight is Earth Hour. Here's how you can participate
CNN
Tonight, for the 15th consecutive year, people around the world will turn off their lights for one hour. It's part of a grassroots global campaign called Earth Hour.
What is Earth Hour?
Earth Hour is an annual tradition started by the World Wildlife Fund (WWF) in 2007 in Sydney, Australia, to raise awareness about climate change. Participants in more than 190 countries will turn off their lights for one hour on Saturday.

The White House is making clear it views President Donald Trump’s Friday Oval Office showdown with Ukrainian President Volodymyr Zelensky as an overwhelming win underscoring Trump’s “America First” leadership, dispatching top officials and allies on the airwaves to amplify Trump’s handling of the situation even as European leaders are putting on a key show of force of unity for Ukraine and its leader.