107K views · 2.4K reactions | Nearly 120 world leaders gathered in Glasgow to address what scientists and health experts say is the world's biggest crisis: climate change. CNN's Wolf Blitzer reports. | CNN | Facebook

10K views · 228 reactions | Tackling climate change might seem overwhelming, but everyone can make a difference. Tell us what you’re doing for a more sustainable planet: https://cnn.it/2qA21KR | CNN International | Facebook