On Saturday December 12, the UN climate negotiations between nearly 200 countries finally resulted in what world leaders called a historic agreement marking the end of the fossil fuel era.

To put pressure on decision makers before the final announcement of the deal, thousands of civilians and climate activists in Paris mobilized to form giant "red lines" in the center of Paris, to symbolize the boundaries that negotiators must not cross.

VICE News finds out why the French authorities lifted the ban on protests for the end of the COP21, why people are protesting when the climate deal is being celebrated as a 'turning point', and meets a UN Climate Summit observer and former key negotiator to find out what the deal really means.

Watch "Naomi Klein and Jeremy Corbyn: COP21 - Climate Emergency (Dispatch 5)"

Read "Nations Agree to Historic Pact on Climate Change"