G7 leaders: 2021 is turning point for the world

G7 leaders say 2021 is a turning point for our planet. They've now finished their summit in Cornwall in southwest England. They agreed on new targets to tackle climate change -- including slashing greenhouse gas emissions and financing a green transition for poor nations. But environmentalists say the pledges aren't ambitious enough - and are sceptical that governments will keep their promises. Al Jazeera's Jonah Hull reports from Cornwall. - Subscribe to our channel: - Follow us on Twitter: https://twitter.com/AJEnglish - Find us on Facebook: https://www.facebook.com/aljazeera - Check our website: https://www.aljazeera.com/