<p>With less than 100 days until the United Nations climate change conference in Paris, acclaimed author and environmental activist Bill McKibben has launched a mass call to action. It has received support from a raft of prominent artists, journalists, scientists and academics. He explains to France 24’s Mairead Dundas why the time to act is now.</p><br /><br />Visit our website:<br />http://www.france24.com<br /><br />Like us on Facebook:<br />https://www.facebook.com/FRANCE24.English<br /><br />Follow us on Twitter:<br />https://twitter.com/France24_en
