► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Pilita Clark, FT environment correspondent, explains why talks in Paris at the end of 2015 on a new global climate change agreement are crucial. By reducing greenhouse gas emissions, mainly carbon dioxide, the aim is to limit the global temperature rise to 2C.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
