Yahoo TV

Armed with banners and chanting slogans, protesters marched through the streets of Glasgow, where the COP26 conference is taking place.

Inside the conference venue civil society leaders were taking over discussions at the end of a week of government speeches and pledges, which have aimed to secure enough national promises to cut greenhouse gas emissions - mainly from fossil fuels - to keep the rise in the average global temperature to 1.5 degrees Celsius, which scientists say is a tipping point towards far more extreme weather events.

Campaigners and pressure groups have been underwhelmed by the commitments made so far, many of which are voluntary or set deadlines decades away.

Thunberg galvanized young people around the world to take action in "Fridays for Future" school strikes - which began with her standing every week outside the Swedish parliament.

The British president of the two-week conference acknowledged that much more needed to be done to secure more ambitious commitments to stop the world's slide into climate catastrophe, urging national negotiators to step up the pace.